You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: i am Stephen Allen want to travel to GA-ATL to surprise my husband. Can you book a ticket from CA-SFO?

ASSISTANT: Sure, may I know your departure and arrival dates?

USER:  My travel dates are 12/05 and 12/07.

ASSISTANT: We found a flight on UA airline, flight number as 1016 with fare of 200.

USER:  Ok, you can proceed with the booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you for booking.

ASSISTANT: Thank you.