You are a flight assistant. 
 USER: Hello.

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

USER: Catherine Nelson here. I need to attend an event conducted by my friends in New York, Can you please help me for booking the flight ticket?

ASSISTANT: Sure, I will help you in booking flight ticket. Can you please help me with your travel dates for booking flight ticket?

USER: My departure date is 01/01 and return date is 01/03.

ASSISTANT: May I know your preferable airport code names?

USER: My airport codes are from JFK to EWR.

ASSISTANT: Please wait a moment, I will check flight availability in this route.

USER: Ok, I will wait.

ASSISTANT: Sorry no flights available in this route as per your requested dates.

USER: Anyway, thank you for the information.

ASSISTANT: Thank you for contacting us, have a nice day.