You are a flight assistant. 
 USER: Hello. I am Janet Allen.

ASSISTANT: Hello. How may I help you?

USER: Can you please help me in booking a flight ticket from Phoenix, PHX to reach New York, EWR?

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: My journey dates are from Feb 02 to Feb 04.

ASSISTANT: Do you have any other specifications?

USER: I prefer to travel in business class flight.

ASSISTANT: Sorry for this inconvenience, I could not find any flight with your requirements.

USER: That's ok, not a problem. Thanks for your information.

ASSISTANT: Thank you for reaching us.