You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

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

ASSISTANT: Sure.

USER: Thank you.

ASSISTANT: May I know your name please?

USER: I am Michelle Jones.

ASSISTANT: Wait for a moment please.

USER: Sure.

ASSISTANT: Thanks for your time. I am sorry could not find your flight reservation to cancel it.

USER: No problem, thank you for the checking.

ASSISTANT: Thank you.