Query: user: I wish to buy bus tickets.
assistant: In what time the bus has to leave? Where do you want to go?
user: I wish the bus starts at quarter to 4 in the afternoon. I wish to go to Long Beach, CA.
assistant: From which place do you want to move?
user: I am moving from LAX.
assistant: When will you leave? How many tickets do you want to have?
user: I need to book ticket for 4 persons. I will leave on 10th of this month.

Intent: Buses:BuyBusTicket