Query: user: Please help me search for a bus.
assistant: Where you coming from and where are you going?
user: I will came from SD and will go to Long Beach.
assistant: When do you want to leave?
user: I want to leave on the 1st and I am leaving from San Francisco. I want Flexible tickets.
assistant: I found a flexible ticket leaving at 7:50 am and it cost $70.
user: What bus station?
assistant: It's Salesforce Transit Center.
user: In which station does this bus reach?
assistant: It's Downtown Station.
user: Good, I want bus tickets.
assistant: How many?
user: For 3 people.

Intent: Buses:BuyBusTicket