Query: user: I wish to buy bus tickets.
assistant: What is your leaving place? When will be the bus leaves? Where do you want to go?
user: I wish to go to Los Angeles from SFO at 6:30 pm.
assistant: How many tickets shall I book for you?
user: I need it for 3 persons.
assistant: When will you leave?
user: I wish to leave on March 10th.
assistant: Kindly ensure that, on March 10th, Economy tickets has been booked for 3 persons from Los Angeles to San Francisco at 6:30 pm.
user: Yes. it is good for me. From which station I am moving from?
assistant: The starting station is Union Station. Sorry, I am unable to get the tickets for you. What is your opinion about the bus moving at 7 pm? The cost of the ticket is $42.
user: It is good for me.

Intent: Buses:BuyBusTicket