You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you at this moment?

USER: I am looking for a flight from PHX to JFK, can you help me in booking?

ASSISTANT: Sure, I will help you. Please send your travelling dates.

USER: Sure, my planned travel dates are Apr 10 and Apr 12.

ASSISTANT: Do you have class preference?

USER: I need a flight in a business class.

ASSISTANT: May I know your name?

USER: Myself Amanda Edwards.

ASSISTANT: No issues. Thank you for checking. Sorry, there is no flight available with your requirements.

USER: That's ok, no problem. Thank you for the information.

ASSISTANT: You are welcome, have a nice day.