You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you out?

USER: I would like to cancel my recent reservation, can you help me in that?

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

USER: Sure, myself Margaret White.

ASSISTANT: Sorry, there are no reservations found.

USER: That's ok, no problem. Thank you for the information.

ASSISTANT: Thank you for reaching us.