Query: user: Can you help me get some bus tickets?
assistant: Sure thing - where are you going, and how many will you need?
user: I need two tickets, to LA.
assistant: Can I get a few more details? Where are you leaving from, when will you be leaving, and what time would you like to catch your bus?
user: I'm leaving from San Francisco at nine am on the 11th.
assistant: To review: You'd like 2 economy tickets for a bus leaving at 9 am on March 11th from San Francisco and going to Los Angeles?
user: Yeah, that sounds good.
assistant: I couldn't get those, but there's a bus leaving at 8:50 am for $44?
user: Yeah, that's only a little earlier, that's fine.

Intent: Buses:BuyBusTicket