Query: user: I'm looking for a bus
assistant: What is the destination? What day do you want to leave?
user: The destination is Washington, and I want to leave on March 14th
assistant: What is the city of departure?
user: The city of departure is New York
assistant: There are 8 buses available. There's a bus at 6 am and costs $34
user: I prefer something else
assistant: A bus at 6:20 am, that costs $35
user: No, please look for another one. I need a direct bus for 4 people
assistant: There's a bus at 6:50 am that costs $33
user: What is the departure station?
assistant: The departure station is Penn Station
user: Ok, It's good for me! I want to book tickets
assistant: A ticket for 4 people, from New York to Washington, on March 14th at 6:50 am, no extra luggage. Do you confirm?
user: Yes, I confirm, thanks!
assistant: Your ticket has been booked!
user: Very well, thank you!

Intent: Buses:BuyBusTicket