You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am unable to travel the trip which I have planned, so can you please cancel my flight ticket?

ASSISTANT: Sure, I will help you in cancelling the reservation.

USER: Thank you.

ASSISTANT: May I know your name please?

USER: Sure, my name is James Lewis.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry, there are no reservations found.

USER: Ok, no problem with that one, I think it might be cancelled by my father.

ASSISTANT: Thank you for choosing us.

USER: Welcome.