You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you at this moment?

USER: I am planning to travel from DEN to OAK. Can you please help me to book a ticket?

ASSISTANT: Sure, may I know your travelling dates, please?

USER: My travelling dates will be on Dec 6 to Dec 8.

ASSISTANT: Is there any airline preference?

USER: No.

ASSISTANT: May I know your name please?

USER: Dorothy Wright here.

ASSISTANT: Do you have any other specifications?

USER: I need a direct flight with economy class.

ASSISTANT: There is a direct flight-1029 in Frontier Airlines with a fare of 200. Shall I proceed with booking?

USER: You can proceed to booking.

ASSISTANT: Dorothy Wright, your booking is done in economy class, the depart time is 13:00 PM and return time is 15:00 PM.

USER: Thank you.

ASSISTANT: Most welcome, thank you for reaching us.