Query: user: Could you find me one seat on a train?
assistant: Where are you going to and leaving from and on what date would you like to travel?
user: I'd like 2 seats from Portland going to Vancouver, BC on the 6th of March.
assistant: There are 7 trains that would potentially work. How does a train leaving at 7:40 am that costs $139 sound?
user: Where is it leaving from and where will it arrive at?

Intent: Trains:FindTrains