You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I can I help you?

USER: Can you aid me in booking a flight ticket from PHX to DEN?

ASSISTANT: Sure, please provide me your planned travel dates.

USER: Sure, I would like to go on Sept 17th and return back on Sept 19th.

ASSISTANT: Do you prefer either economy or business class?

USER: Any class is fine for me.

ASSISTANT: Do you have any specific airline preference?

USER: No, I don't have any airline preference.

ASSISTANT: May I know your name to proceed further?

USER: Myself Linda Parker.

ASSISTANT: We have a connecting flight from Hawaiian airlines with the price 100. Shall I proceed with it?

USER: Ok, please proceed for further.

ASSISTANT: Your ticket has been proceed in economy class with flight number 1009.

USER: Thank you for booking.

ASSISTANT: Thank you for opting us.

USER: Welcome.