You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I want to attend a Marriage in Phoenix. Can you please help me for booking the flight ticket?

ASSISTANT: Sure, may I know your trip dates?

USER: My travelling dates are June 20 and June 22.

ASSISTANT: Please mention your source airport code.

USER: My airport codes are JFK and PHX.

ASSISTANT: Do you have any connection limit?

USER: I prefer single connecting flight.

ASSISTANT: Is there any class preference?

USER: No, I don't have any other preferences.

ASSISTANT: Please forward your good name.

USER: My name is Katherine Campbell.

ASSISTANT: Sorry, there are no flights found on your specified trip dates.

USER: Anyway, thanks for the information.

ASSISTANT: Thank you for availing us.