You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you for this moment?

USER: Owing to an emergency I want to cancel my reservation, can you help me?

ASSISTANT: Sure, I am here to help you. May I know your name please for further process?

USER: I am Barbara Carter.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Sorry Carter, there is no reservation found as per your name to cancel your reservation.

USER: No problem, thanks for checking.

ASSISTANT: You are welcome.