You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you at this moment?

USER: Can you please help me in booking a flight in economy class?

ASSISTANT: Sure, can you please let me know your connection limit?

USER: I need a connecting flight.

ASSISTANT: May I know your name please?

USER: Sure, I am Nancy Thompson.

ASSISTANT: Kindly assign your boarding and landing airport codes?

USER: My airport codes are PHX - DFW.

ASSISTANT: When you are planning to make your journey?

USER: My planned dates are on Feb 12th to 14th.

ASSISTANT: Ok, please wait for a while.

USER: Make sure that I would like to return in afternoon time.

ASSISTANT: Sure. Sorry to inform you that, we did not find any flights matching your requirements.

USER: No worries, thank you.

ASSISTANT: Thank you for approaching us.