Query: user: I'm going to need 2 train tickets.
assistant: I can help you with that. Which city would you like the train to depart from, and where would you like to go? As well, It would help if I knew what date you would to travel on.
user: I'd like to get a train from Phoenix, AZ to Los Angeles on the 9th of March.
assistant: I've found 5 trains that match your criteria. How about one that leaves at 6:30 am and costs $157 in total?
user: That sounds good to me. Can you buy the tickets?

Intent: Trains:GetTrainTickets