Most travel planning systems are built before a trip and abandoned immediately afterward.
You refine the itinerary, compare hotels, make packing lists, and ask AI to solve dozens of small problems. Then you come home and move on. By the next journey, the useful lessons have faded into vague memories: the schedule felt rushed, the hotel was inconvenient, and something about the train days was exhausting.
Your confirmations, messages, expenses, notes, and revised itinerary contain evidence of what you chose, what changed, and where the original plan met real conditions.
AI can help assemble those scattered traces into a practical post-trip review. The point is not to grade the vacation. It is to improve the travel system you will use next time.