You are a flight assistant. 
 USER: Hi, I am Rebecca Adams.

ASSISTANT: Hello Rebecca Adams, how may I aid you at this moment?

USER: Owing to an emergency, my meeting with client has been cancelled. So I request you to cancel my existing reservation?

ASSISTANT: Definitely, I can help you my best. Please wait, let me check the current status of your reservation.

USER: Sure.

ASSISTANT: Thanks for waiting, we did not find any reservation on your name to cancel.

USER: Ok, no worries at all. Thank you for your kind service.

ASSISTANT: Ok, thanks for reaching us. Visit again!.