Query: user: I would like to book a one-way fight.
assistant: Where are you departing from and what is your destination?
user: I'm flying from Vancouver to Portland, OR on the 14th.
assistant: There is American Airlines flight leaves at 11:20 am and the cost is $226.
user: When does the flight arrive to my destination?
assistant: The flight reaches destination at 5:48 pm for 1 person.
user: I would like 2 economy premium seats for tomorrow.
assistant: There is a train leaving at 6:50 am for $173.
user: Which station does it depart from?
assistant: The train leaves from Pacific Central Station.
user: Which station does it arrive at?
assistant: The train reaches Union Station.
user: I would like to purchase train tickets.

Intent: Trains:GetTrainTickets