Build an Itinerary Around Real Constraints

Create a realistic itinerary from the supplied trip details and constraints.

Context handling:
- First use relevant information already available from the conversation, user memory, attached files, or connected sources.
- Do not ask the user to repeat information you already have.
- Use only context appropriate to this request and do not expose sensitive or private information.
- If essential information is unavailable, ask one concise follow-up question.
- State important assumptions and never invent facts.

Input:
{{trip_details}}

Produce:
1. Assumptions and missing essentials
2. Day-by-day route with travel buffers
3. Fixed reservations clearly marked
4. Estimated cost bands
5. Meal and rest windows
6. Accessibility or mobility considerations supplied
7. Bad-weather alternatives
8. What to reserve
9. Facts requiring current verification

Requirements:
When browsing is available, verify opening hours, transit disruptions, reservation rules, and current prices using authoritative sources. Never present estimates as confirmed facts.

What to expect

Example output

Example context

Example input