Query: user: Can you get me a bus ticket? I want an economy seat.
assistant: Sure, where are you going? Where are you leaving from? And when would you like to travel?
user: I'm going from SD to SF on March 9th.
assistant: Okay, I found 6 buses for you. The best bus leaves at 7:40 am, an economy ticket costs $59.
user: Is there anything else? I'd like a flexible ticket.
assistant: Okay, I found 5 flexible tickets available. One leaves at 10 am, it costs $74.
user: What station is it departing from and arriving at?
assistant: It departs from Salesforce Transit Center and arrives at the Santa Fe Depot.
user: Okay, is there anything else?
assistant: Another bus leaves at 11:40 am, a flexible ticket will cost you $64.
user: That sounds perfect.
assistant: Would you like me to purchase a ticket?
user: Yes please, buy the ticket.

Intent: Buses:BuyBusTicket