You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how best I can aid you today?

USER: I have to go Phoenix to meet my friend so please help me with flight ticket booking from LAX to PHX.

ASSISTANT: Sure, let me know your class preference.

USER: I am ok with any class.

ASSISTANT: May I know your connection limit?

USER: I am looking for single connecting flight so please check with that.

ASSISTANT: On what dates do you want to travel?

USER: I have planned my travel dates as Mar 14 and Mar 16.

ASSISTANT: Ok, Do you have any other requirements?

USER: I would like to return in morning time so please check with that.

ASSISTANT: Please mention your name for booking.

USER: Sure, myself Donald Walker.

ASSISTANT: Sorry to say that, we did not found any flights based on your specified details.

USER: Oh! It is sad to hear. Anyway, thank you for your time.

ASSISTANT: Thank you for approaching us.

USER: Most welcome.