You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I want to go CNN Centre to shop for my marriage, it is in Atlanta. Can you book the flight ticket to Atlanta, GA - ATL?

ASSISTANT: Sure, I'm here to help you. May I know your planned dates please?

USER: I want full day to shop that is on 06/27, so my travelling dates are from 06/26 till 06/28.

ASSISTANT: Ok, may I know your source airport code please?

USER: Source airport is PHX, and destination airport code is ATL.

ASSISTANT: Ok, hold on for a moment. Let me check the best flight for you.

USER: Please, book my ticket on Jonathan Wilson.

ASSISTANT: Sorry to say this Wilson, there are no flights available on your requested dates. Sorry for the inconvenience provided.

USER: That's ok, no issue. Thank you for your information.

ASSISTANT: Thank you for reaching us.

USER: Most welcome.

ASSISTANT: Have a good day.