Booking & Reservation AI Agent

What this agent does

Quotes the total, never the confirmation

Ingest rate plans, mandatory charges, tax rules and room inventory from supported PMS or channel sources.

Normalise each charge by whether the guest can avoid it, not by the name the property has given it.

Reason

Resolve which jurisdiction's pricing rule the quote is built under before any price is composed.

Compose the total the guest must pay, and carry that figure into every turn that states a price.

Bind each charge in the quote to the rate record it came from, and mark what the record leaves open.

Decide

Describe accessible features in assessable detail, and keep the specific room blocked in connected systems.

Flag fee explanations, fare rules and policy summaries the agent must not compose on its own.

Out

Retain the rate record, the quote, the flags, the desk's amendments and the approval on the booking.

Execute write actions only inside the approval boundaries agreed during implementation.

→ Product statement

The agent quotes; the reservations desk decides whether a booking is confirmed, and the property stays the seller of record.

Example workflow

One enquiry, rates to confirmation

AgentHuman

1Enquiry receivedVoice, chat, web widget, OTA message or channel request

2Rates and rules assembledRate plan, mandatory charges, tax rules, inventory and the market it is quoted under

3Quote composedTotal price, the charges in it and confidence

4Controls appliedTotal-price checks, jurisdiction rules, accessible-inventory holds and confidence threshold

No human action required

Stages 1 to 4 run unaided, and nothing is confirmed at any of them — the agent is quoting, and the desk's lane opens at the confidence gate.

5DecisionBranches at the confidence threshold

High confidence

Goes to the reservations desk to approve.

Low confidence

Adds a rates-desk read first.

Reservations approval

The quote is held with the charges behind it, its flagged lines and the confidence.

Approve · Amend · Send to the rates desk

Approved — released to book▼

6Reservation systems updatedOnly where write access and approval policy allow it

7Outcome evaluatedQuote corrections, flagged-line outcomes, omitted charges and post-booking amendments

Amendments

Every desk amendment is counted in the evaluation.

What should not run autonomously

Human approval stays in control

Outside the boundary — human approval required8 items

Confirming a reservation or taking a guest payment.

Explaining what a mandatory fee is charged for.

Reassigning a room that is held for accessible use.

Adding an optional service the traveller did not pick.

Automation boundaryAgent acts unaided

✓Assemble the total price from the rate and the mandatory charges.

✓Describe accessible features in detail a guest can assess.

✓Apply the jurisdiction rules configured for the property.

✓Flag what a person must weigh, and hold the booking for them.

Any write happens inside the boundaries agreed at implementation, never ahead of approval.

Stating a legal requirement to a guest or traveller.

Setting or changing a rate, a fee or a fare rule.

Refusing a booking, or applying a screening rule.

Changes to the pricing, fee or approval configuration.

Example output

One quote, annotated

Everything the agent quotes is attached to the rate record it was drawn from.

Booking output · single enquiryIllustrative example

Stay

Quoted line

Total payable

Source of record

Confidence

Attribution

Two-night city stay

King room, two nights, with the mandatory destination charge in

$412.00

Rate plan on file

93%

Property name and booking terms

As receivedTaken from the rate plan and the charge schedule on file — nothing on this side is written by the agent.

Source records used Rate plan on file Mandatory charge list Tax and levy table

Why this wordingIt states the total the guest pays, not a nightly rate a mandatory charge sits outside.

ActionApproveAmendSend to the rates desk

What the score decidesBelow the configured threshold the quote picks up a rates read before it reaches the desk.

Value

Where AI adds value

The same four claims, placed at the point in the workflow where each one applies.

Where the value landsValue 01 – 04

Every enquiryFrom the rate record

03Quoting

Quote from the record

Draw on the rate plan on file and the charge and jurisdiction rules configured for the property.

01Approved path

Quote the total, every time

Routine availability and price answers arrive already totalled.

02Human review

Send review to the risky quotes

Flagged charges and low-confidence quotes are marked, so the desk's read starts where risk concentrates.

04Build an evidence trail

The quote, the rate and fees behind it and the person who confirmed it stay on the booking.

Integrations

Typical integrations

Five system groups connect to the same agent. Which of them are in scope is decided in discovery.

Property managementOpera Cloud · Infor HMS
Mews · Cloudbeds · Apaleo

DistributionChannel manager · GDS
Booking.com · Expedia · Airbnb

Central reservationsSynXis · Pegasus
Amadeus · Sabre · Travelport

Agent

Booking and reservation

Reads the rates
Quotes the total
Holds for the desk

Payments and foliosAdyen · Stripe
FreedomPay · Elavon

Observability & evaluationOpenTelemetry · Langfuse
Supported monitoring/evaluation sources

Integration availability depends on the client's existing systems and API access.

Agent controls

Six layers between the model and the guest

Each control wraps the one inside it. What a layer does not catch is named in the map below it.

L6 · Outermost — last line of defenceInward → L1 · closest to the model

L6Rollback / safe modeDrop the agent to availability lookup when evaluation or production signals degrade.Roll back

L5Version monitoringTrack model, prompt, charge-rule and jurisdiction-configuration changes.Track

L4TraceabilityRecord the rate record, the quote, the charges, the flags and the approval time.Record

L3Desk approvalHold quotes for the named desk; it governs release, not whether an approved quote is right.Gate

L2Policy guardrailsTest quotes against configured total-price, charge and inventory rules; a failure returns the quote.Restrict

L1Confidence thresholdsRoute low-confidence quotes to a rates read before the desk sees them.Require review

Model coreQuote produced — total price, the charges behind it, flagged lines and confidence

L1 – L2Test whether a quote may stand

L3Puts the release in the desk's hands

L4 – L5Keep the quote and the fees behind it

L6Drops the agent to availability lookup when signals degrade

How Nestack evaluates it

Evaluate the quoting workflow — not only the number at the end.

Coverage runs the whole depth of the workflow, and every layer is cut by slice.

Surface — the price the guest hears

Depth of coverage ▼

E1Final-output evaluationDid each charge the guest must pay sit inside the total?

E2Step-level evaluationDid the agent use the right rate plan, charge list and market rules?

E3Tool evaluationDid it read and write the correct property and the correct rate?

E4Confidence calibrationDo low-confidence quotes actually attract more desk amendments?

E5Slice evaluationHow does performance change across specific booking types?

E6Business outcomeHow many quotes needed a desk amendment or a correction after booking?

Floor — the price the property has to honour

Failure modes

Where each failure originates in the agent

Seven ways a quote goes wrong, placed at its stage.

Agent lifecycleDirection of processing →

01 · Retrieval1 mode

BW-03

Superseded rate record

A rate or charge is read from a plan the property has moved past.

Stage gathersRate plans, mandatory charges, tax rules and inventory

02 · Reasoning2 modes

BW-04

Mandatory charge left out

A charge the guest cannot avoid is quoted outside the total.

BW-06

Fee purpose composed

The agent writes what a charge covers instead of citing it.

Stage proposesTotal price, the charges in it and confidence

03 · Tool / write2 modes

BW-02

Accessible room sold on

The last accessible room goes to a guest who did not ask.

BW-05

Room type, not room

A room type is blocked and no specific room is held.

Stage writesOnly where write access and approval policy allow it

04 · Output1 mode

BW-01

Quoted without the total

A price reaches the guest with a mandatory charge outside it.

Stage returnsThe quote the desk approves and the guest is held to

05 · Change / Version1 mode

BW-07

Silent charge-rule regression

A model or rule change widens what the agent will quote.

Stage tracksModel, prompt, charge rules and market config

Sev-1 · quote given without the total Sev-2 · a wrong charge reaches the guest Sev-3 · source degrades, quote routes to review

See the complete Travel & Hospitality failure-mode catalogue →

Affected slices

One rate class can carry the whole rate

The cohort that hides is the one carrying a mandatory charge. An aggregate amendment rate averages plain direct bookings against stays where a resort charge.

Slice performance — reported separately, not only in aggregateIllustrative example

Slice	Failure rate	Lift	Status
Resort-fee properties	5.2%	3.7×	Review
Accessible-room requests	3.6%	2.6×	Review
Multi-jurisdiction portfolios	2.1%	1.5×	Watch
Standard direct bookings	1.1%	0.8×	Normal

Bar: desk-amendment-rate lift vs. standard-direct baseline · scale 0–4.0× · tick marks the 2.0× review threshold 2 of 4 slices over threshold

Evidence-linked improvement

Every cycle ends by adding a test

A cycle closes when the failure is a regression case the next release has to pass. That suite is what the next booking taken is measured against.

Improvement cycle · five stagesSwitchback — the path turns at Improve and returns at Learn

01Detect

Desk-amendment rate rises in a booking slice.

02Diagnose

The quote is read first, then the rate record beneath it, until the cause narrows to one.

03Improve

The change ships against a version, with the bookings that exposed it attached.

04Verify

Release is blocked until the affected regression cases pass again.

05Learn

The case joins the permanent suite and the reservations playbook.

Learn → DetectThe return edge. Detection next time runs against a suite one case longer.

Typical build scope

Twelve workstreams across six weeks

The build scope read against the delivery timeline. Week structure follows the six-week plan — discovery, sources, quoting workflow, evaluation, integration, then production validation and handover.

Workstream Week 1Week 2Week 3Week 4Week 5Week 6

01Booking workflow discovery and boundary definition.

02Reservation and channel source assessment.

03Total-price, charge and market rule mapping per region.

04Rate-record ingestion and normalisation.

05Total-price assembly and charge binding.

06Confidence scoring and flag routing.

07Reservations desk approval workflow.

08Reservation-system integration.

09Total-price and inventory cases.

10Guardrails and confirmation controls.

11Booking-trail instrumentation.

12Deployment, documentation and Agent Care handover.

12 workstreams · 6 weeks · bar shows the weeks a workstream is active — several run in parallel Final scope and sequence confirmed in discovery

Engagement tiers

What each tier includes

Rows are the capabilities named in each tier's scope. Higher tiers include everything below them.

Capability✓ in scope · — not at this tier PilotOne property, one market ProductionProduction reservation systems AdvancedMultiple properties / brands

Introduced at Pilot

Quoting to your rates and rules✓✓✓

Reservations desk approval✓✓✓

Quote-accuracy baseline✓✓✓

Introduced at Production

Reporting by rate class—✓✓

Approval workflow in your systems—✓✓

Approved write-back—✓✓

Reservation-system integration—✓✓

Introduced at Advanced

Multi-jurisdiction pricing rules——✓

Multi-stage property approvals——✓

High booking volume——✓

Multi-property booking controls——✓

Build price From $5,000 From $8,000 Custom quote

Final build priceConfirmed after discovery based on integrations, workflow complexity, booking volume, approval controls and deployment requirements.

Separate from buildBuild pricing is separate from recurring Agent Care, which covers managed monitoring, evaluations, incidents and verified improvements after launch.

What we need from you

What you bring, and what we build with it

Each input maps to a piece of build scope and a week in the delivery timeline.

You bringWe build with it

01Your rate plans and the charges attached to each → Rate-record ingestion and charge mappingWeek 1

02Quotes you have already given guests → Quoting baseline, total-price assembly and source bindingWeek 2

03Your charge rules and the markets you sell in → Total-price, charge and market rule mappingWeek 1

04Access to relevant APIs, feeds or exports → Reservation, channel and PMS assessment, then integration setupWeek 2

05Quotes you would not want honoured → Total-price cases and failure-mode testingWeek 4

06What no quote may leave out → Confidence scoring, flag routing, guardrails and approval controlsWeek 3

07Named reservations staff to approve quotes → Desk approval workflow, then pilot and production validationWeeks 5–6

Nothing else is required Deployment, documentation and Agent Care handover are ours.

Delivery timeline

Four phases across six weeks

Each phase sits on the weeks it actually occupies, and week 5 carries both evaluation and launch work.

Phase W1W2W3W4W5W6

Discovery W1

Build W2 – W3

Evaluate W4 – W5

Pilot & Launch W5 – W6

Week focus W1Booking workflow discovery, charge-rule mapping and the automation boundary W2Source integration and the quoting baseline W3Quoting workflow, confidence logic and approval controls W4Total-price cases, accessible-inventory checks and failure-mode testing W5Reservation-system integration, pilot bookings and targeted corrections W6One booking cycle taken under the desk, then Agent Care handover

Reading the bandBars are drawn over the weeks the work occupies. The fifth doubles because evaluation and launch overlap.

At the end of W6Validation closes on live bookings, and Agent Care picks up monitoring.

DurationSix-week plan shown · typical delivery 4–6 weeks depending on scope confirmed in discovery.

Next step · Travel & Hospitality AI agent

Build a booking agent around the total price you have to honour.

Short-term lodging is one of only two sectors the federal fee rule reaches, and in a conversation there is no screen — every price the agent utters is a display. Tell us who signs a quote off before a guest is held to it; that name is where the quoting workflow ends.

Discuss this agent →

Nestack Agents · Booking and reservationAGT-TH-01 · Agent Care available after launch