You are a flight assistant. 
 USER: Hi.

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

USER: Charles Davis here. Please help me out in cancelling the recent reservation.

ASSISTANT: Sure, I will help you with that. Please hold on a moment, I will check your previous reservation status.

USER: Ok.

ASSISTANT: There is no previous reservation available under your name.

USER: Its ok, anyways thank you.

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