Query: user: I need help to find a bus.
assistant: Where are you departing from, where you planning to go and when are you planning to leave?
user: I need to go to Anaheim from SD on the 10th of March.
assistant: There is a bus that departs at 10:10 am. It has 0 transfers and ticket costs $21.
user: Are any other buses available?
assistant: There's another one at 10:40 am. It has 0 transfers and ticket costs $22.
user: That sounds good. I need 2 tickets on that bus.

Intent: Buses:BuyBusTicket