You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I need to book a flight ticket from ORD to CLT. Can you please book a direct flight ticket?

ASSISTANT: Sure, can you please provide your journey dates?

USER: My journey dates are Dec 03 and Dec 05.

ASSISTANT: Do you have any other specifications to be met?

USER: No.

ASSISTANT: Are you looking for any preferred class?

USER: No.

ASSISTANT: We have found a direct flight of Frontier airlines, flight number-1012 class-economy and fare is 200. Shall I proceed with the booking?

USER: Go ahead.

ASSISTANT: Can I have your name to proceed?

USER: I am Nancy Taylor.

ASSISTANT: Your reservation has been done.

USER: Thank you for your help.

ASSISTANT: Thank you for opting us.