Query: user: Hey. I need to ride a train for a trip. Help me book some tickets.
assistant: What is the departure and arrival city for the trip? Please also provide the date for the tickets.
user: On the 9th of this month, I'll be traveling from Vancouver to Seattle, WA by train.
assistant: I have found tickets for you. The departure time is 6:20 am on the 9th of this month. The total cost will be $55.
user: Exactly what I needed. It's in my price range too. Buy the tickets for me if you can.
assistant: How many tickets do you wish to purchase?
user: I only need one ticket for the trip.

Intent: Trains:GetTrainTickets