Query: user: I want to find a train on March 6th. I need one seat. Any fare class is fine.
assistant: What city are you leaving from?
user: I'm leaving from Philadelphia.
assistant: Where are you traveling to?
user: I'm going to Chi-town.
assistant: I found 3 trains. There is a train leaving at 12:10 pm for $113.
user: Are there other trains? I want to find something from New York City.
assistant: I found 6 trains. There is a train leaving at 6 am for $112.
user: Sounds great. Can you book some train tickets for me?

Intent: Trains:GetTrainTickets