Query: user: I need a one-way flight on United Airlines in economy.
assistant: Where are you leaving from? Where are you going? What time are you leaving?
user: I am traveling to San Fran to SD on the 10th of March.
assistant: I found a United Airlines flight leaving at 7:20 am with 0 stops. The ticket is $105.
user: What airport does the plane leave from? Is the ticket refundable?
assistant: The flight leaves from SAN International Airport and the ticket is non refundable.
user: That is perfect. I'll need a bus to get there on the 4th.
assistant: I found 6 options, including a bus leaving at 7:40 am. The ticket price is $61 for economy.
user: That sounds perfect.
assistant: Are you ready to buy tickets?
user: Yes, please reserve me a seat.
assistant: How many tickets?
user: I need four tickets.
assistant: Please confirm, 4 economy tickets leaving San Diego at 7:40 am for San Francisco on March 4th.
user: No, I need 2 tickets.

Intent: Buses:BuyBusTicket