Query: user: I'd like to find a train.
assistant: Where will you be departing from?
user: I'll be leaving from NY.
assistant: Where do you plan to go and on what date?
user: I need to go to Washington on the 12th of March.
assistant: Of the 9 suitable trains, there is one that departs at 7:20 am and a ticket costs $67.
user: That sounds like a good option.
assistant: Shall I book tickets for you?
user: Yes, please reserve tickets for me.
assistant: How many tickets do you need?
user: I'll only need one seat.

Intent: Trains:GetTrainTickets