You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I want to book a flight ticket.

ASSISTANT: Sure, May I know your details for flight ticket reservation?

USER:  Sure,My Origin airport is CA-SFO and destination airport is CO-DEN.

ASSISTANT: May I know your name and dates of travelling?

USER: My travelling dates are departure date is Aug-22 and return date is Aug-24. My name is Kevin Edwards.

ASSISTANT: Please wait for a while, Let me check and revert back to you.

USER: OK, I will wait .

ASSISTANT: Yes, the flight ticket is available as per your requested dates.

USER: May I know flight details ?

ASSISTANT: Sure, Details of flight are as follows Airline-AA flight number-1000 and price limit 100.

USER: OK, Confirm the flight ticket .

ASSISTANT: Sure. Your ticket has been confirmed.

USER: OK, Thanks for your service .

ASSISTANT: Your most welcome, Have a nice day.