You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I aid you today?

USER: I am Dennis Taylor. I would like to attend a client meeting in my office at Atlanta, ATL, so can you please help me in booking a flight ticket?

ASSISTANT: Sure, please provide your flying dates?

USER: I want to travel on 04/08 and need  to catch return flight on 04/10.

ASSISTANT: May I know your source airport code?

USER: Source is from OAK.

ASSISTANT: Ok, do you prefer economy class or business class?

USER: I prefer a economy class.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: We found a Hawaiian airline with 1026 flight number and fare is 100. Shall I proceed?

USER: Proceed with the booking.

ASSISTANT: Your ticket is confirmed with an economy class.

USER: Thanks for the help.

ASSISTANT: Thank you for reaching us.