You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

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

ASSISTANT: I am happy to help you with that. Can I know your name to proceed for further?

USER: I am Karen White.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Sorry for the inconvenience, I did not flind any active reservation on your name to cancel.

USER: No problem, thanks for checking.

ASSISTANT: Most welcome.