Query: user: Can you help me search for a bus I can take
assistant: Where are you going?
user: I want to head to LAX
assistant: Sure, and wen and where are you coming from?
user: I'll be leaving San Fran on March 12th, and I'd like a direct bus please
assistant: How about this $52 bus that leaves at 7:30 am
user: Where is it departing from?
assistant: It departs from the Transbay Terminal
user: Got it, but can you find me something else?
assistant: Sure, how about this $51 bus leaving at 7:50 am?
user: What station does it arrive and depart from?
assistant: It arrives at North Hollywood station and leaves from Transbay Terminal
user: That sounds great, book me 3 tickets on that bus

Intent: Buses:BuyBusTicket