Query: user: I need a train.
assistant: Which cities will you leave and go to? What date will you travel?
user: I'm headed to Sacramento, Ca to San Diego on the 7th of this month.
assistant: You can go at 6:10 am for $148.
user: What station is it from?
assistant: It departs from Santa Fe Depot.
user: Aren't there later trains? I need two seats.
assistant: There are 8 others. Next departing would be 6:40 am for $274.
user: Which station does it depart from?
assistant: It also leaves from Santa Fe Depot.
user: Can't you get something later. I'm heading from Anaheim, CA.
assistant: There are 10 trains from there, starting as early as 6:50 am. The cost is $233.
user: That's perfect.
assistant: Shall I book your tickets now?
user: Yes, lets make it.

Intent: Trains:GetTrainTickets