You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Barbara Walker.

ASSISTANT: How can I assist you?

USER: I am planning for a round trip from DEN, could you please help me with booking a flight ticket?

ASSISTANT: Sure, I'll help you in that. May I know your destination airport code please?

USER: My destination airport code is also DEN.

ASSISTANT: Fine, may I know your travel dates please?

USER: I would like to take off on 10/30 and return on 11/01.

ASSISTANT: Ok, please be on hold.

USER: Make sure that the connection limit is 0.

ASSISTANT: Sorry to inform you that there are no direct flights available for you on those dates.

USER: That's ok, not an issue. Anyways, thank you for the information.

ASSISTANT: Thank you for choosing us.