You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I'm Patricia Jackson.

ASSISTANT: How can I assist you?

USER: I am planning to travel from PHL to PHX to attend live concert at Phoenix, can you please help me with booking a flight ticket?

ASSISTANT: Sure Patricia, can I know the travel dates please?

USER: Sure, my departure date is on 12/07 and the return date is on 12/09.

ASSISTANT: Ok, wait a moment.

USER: Sure.

ASSISTANT: Sorry to inform you that there are no flights as per your request.

USER: Ok, no problem. Thank you for checking.

ASSISTANT: Thank you for approaching us, have a great day.

USER: You are welcome.