Real use case

Find a cheaper train route with seats together

The poster asked Grok Bot for a train ticket. The direct option was €177. He says it found a different route on long-distance trains for €75.90, with seats together, and once he said "book it" and confirmed the payment, it was done. Cheaper train routes often mean a change of trains or a longer trip, so it pays to see the times before you say yes. The same ask works for US trips on Amtrak or a bus and train mix.

Step-by-step guidePlan a trip with an AI agent: flights, a hotel and a budget

Poster's claim, not verified: He says he saved about €100. We have not verified this.

Copy this prompt

Find train tickets from [FROM] to [TO] on [DATE] for [NUMBER] people, seats together. Compare the direct train with cheaper routes that change trains. For each, show the price, total travel time, number of changes and the shortest connection. Book nothing until I pick one and confirm the payment myself.

Our own prompt, written from what the source describes. We haven't run it ourselves. Text in [BRACKETS] is what you replace.

Watch out for

  • A tight connection on a cheaper route can leave you stranded if the first train is late. Check whether it's one ticket or two.
  • Confirm the payment yourself, and check names and dates on the ticket before you travel.

Where this comes from

Original post by @Justaperson042 on X, Oct 24, 2026. We rewrote it in our own words. The result is what the poster reports.

Read the original

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Plan a trip with an AI agent: flights, a hotel and a budget

Give an agent your dates, budget and home airport, and it can put together a few complete trip options with flights, a hotel and a total. Here is which agents people use and how to check their work before you book.

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