You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I have to attend an interview in QA software solutions at Phoenix, Can you please help me to book a flight ticket from New York?

ASSISTANT: Let me know your airport codes.

USER: My origin airport code is JFK and my destination airport code is PHX.

ASSISTANT: Can I know your travelling dates?

USER: My trip dates are Dec 06 and Dec 08.

ASSISTANT: Do you have any preference?

USER: My depart time is afternoon.

ASSISTANT: Let me know your name.

USER: My name is Edward Moore.

ASSISTANT: Sorry, no flights found for your travelling dates. Thank you.