You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you at this moment?

USER: I am planning to attend music concert at PHX, can you please help me with booking a flight ticket from JFK?

ASSISTANT: Sure, I am happy to help you with that.  Can I have your travel dates please?

USER: I would like to take off on Feb 21 and return on Feb 23.

ASSISTANT: Ok, please let me know the timings of your journey.

USER: I would like to return during evening time.

ASSISTANT: Do you have any other specifications to travel?

USER: I am looking for a connecting flight.

ASSISTANT: Can I have your good name please to proceed further?

USER: My name is Janet Collins.

ASSISTANT: Ok, please wait a moment to check flight availability.

USER: Sure, take your time.

ASSISTANT: Sorry Janet Collins, no flight is available to you on your dates in evening time.

USER: Ok, no issues. Thank you for the information.

ASSISTANT: Thank you for choosing us, have a good day.

USER: You are welcome.