You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you out?

USER: I have to cancel my flight ticket reservation due to some health problems, can you assist me in that one?

ASSISTANT: Sure, I will help you in cancelling the reservation. May I know your name please?

USER: Sure, my name is Nicole Jones.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Sorry, there are no reservations found in our database.

USER: I think it might not booked properly, thank you for your assistance.

ASSISTANT: Thank you for choosing us.

USER: You are welcome.