You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I am Brain Phillips, I need a flight to Denver, CO-DEN to participate in baseball game. Can you help me with booking?

ASSISTANT: Sure, kindly provide me your travel dates?

USER: My departing date is 11/15 and return date is 11/17.

ASSISTANT: May I know your origin airport code?

USER: My source airport is San Francisco, CA-SFO.

ASSISTANT: There is a flight with your requirement, airline is Hawaiian with price 100 and its a direct flight. Shall I proceed with booking?

USER: Sure.

ASSISTANT: Your booking is done and flight number is 1000.

USER: Thank you for booking the flight ticket.

ASSISTANT: Thanks for reaching us, have a good day.