Quote a complete trip from one brief — your team just reviews and books
Your agents stop juggling tools and start closing trips faster. One real tool-use agent reads a brief, chains the tools it needs, maintains state across the conversation, streams its work live — and is fenced in by hard safety and compliance guards, so what it hands back is ready to sell.
A genuine tool-use loop, not a single prompt
Voyage runs on OpenAI function-calling. The agent parses the natural-language brief, asks any clarifying questions it needs, then enters an autonomous loop: it decides which tool to call next, calls it, reads the result, updates its plan, and repeats — chaining route → pass → hotels → flights → ground until the trip is complete.
Each call is a deliberate decision by the model, grounded in live data from your suppliers. The agent isn't faking it with a fixed script — it adapts the chain to the brief in front of it.
The agent's toolbox
Every tool is a real, server-side capability that touches live supplier data or the plan state. The model orchestrates them; your servers do the work.
Plan & route
list_destinationspropose_route· + compliance + live timetable validationupdate_plan_statefinalise_plan
Rail
recommend_pass- Eligibility checked server-side before it can be added
Hotels
search_hotels· per stop & per destinationpick_hotel
Flights
search_flights· per legpick_flight
Cars & transfers
search_cars·pick_carsearch_transfers·pick_transfer
Activities
search_activitiespick_activity
It remembers, and it shows its work
One plan_state for the whole conversation. The agent holds the route, every pick, the party size and dates in a single persistent object — so when you say "make the Rome hotel a 5-star instead," it knows exactly what you mean and re-prices only what changed.
Streamed over SSE. Every tool_start and tool_done event is pushed to the UI in real time, so your agent watches checkmarks land as the work happens — "✓ Designed route", "✓ Found 5 hotels in Paris", "✓ Recommended Interrail Global pass" — instead of staring at a spinner.
- Designed your route · 4 cities, 3 stops
- Recommended Interrail Global · 1st class
- Searching hotels in Lyon… picked Cour des Loges
- Pricing your return flight · Nice → London…
An autonomous agent on a tight leash
Agentic autonomy without guardrails is a liability. Voyage fences the agent in with hard, server-enforced limits — so it can't run away, overspend, or make claims it shouldn't.
Cost ceiling per session
A hard token/cost budget per conversation. Hit it and the agent winds down gracefully — no runaway spend.
Tool-call & turn limits
Maximum tool calls and turns per session stop loops dead and keep latency predictable.
Repeated-error wind-down
When a tool keeps failing, the agent stops retrying, summarises what it has, and hands back cleanly.
False-"unavailable" correction
If the agent claims something is unavailable, the server re-checks the catalog and corrects it — no false dead-ends.
False-"booked" stripping
The agent only ever quotes. Any premature "it's booked" language is stripped — nothing is booked before payment.
Incident telemetry
Every guard trip, correction and error is logged as telemetry so your ops team sees exactly what happened.
The agent cannot sell a non-compliant pass
Rail pass eligibility is not left to the model's discretion. The server enforces the Conditions of Use: Interrail is for EU residents, Eurail for non-EU, BritRail for travel in Britain — and one-country passes are scoped to their country.
When the agent recommends a pass, the server validates residency and scope before it can be added to the plan. If it doesn't comply, it doesn't go in the basket — full stop.
Agent vs chatbot vs booking forms
Three very different things often called "AI." Only one actually books the whole trip.
| Booking forms | AI chatbot | Voyage agent | |
|---|---|---|---|
| Understands a plain-language brief | ✕ | ✓ | ✓ |
| Chains multiple components autonomously | ✕ | ✕ | ✓ |
| Holds state across the whole trip | Partial | ✕ | ✓ |
| Books real inventory (PNR, rooms, passes) | ✓ | ✕ | ✓ |
| One checkout for every component | ✕ | ✕ | ✓ |
| Server-enforced compliance & safety | Partial | ✕ | ✓ |
See the agent run, live
Book a demo and watch the Voyage agent design, price and assemble a multi-modal trip from a single brief.