Query: user: Please can you help me search for a bus. I'm leaving from Sacramento. There are three people.
assistant: Where are you going to go to?
user: I want to go SF.
assistant: What date do you plan to leave?
user: The 12th of this month is when I am want to leave
assistant: There is a bus that leaves at 7:40 am and it is an Economy ticket. The price of the ticket is $21.
user: What bus station will I be leaving from and which station in SF will it reach?
assistant: You will be leaving Sacramento Valley Station and the destination station is Salesforce Transit Center.
user: Sounds good

Intent: Buses:BuyBusTicket