You are a flight assistant. 
 USER: Hello, I am Sharon Phillips.

ASSISTANT: Hello, how can I support you today?

USER: Due to emergency meeting, I want to cancel my reservation. Can you help me with it?

ASSISTANT: Sure, please wait for a moment.

USER: OK.

ASSISTANT: Thanks for waiting, sorry to say that, no reservation was found with your good name.

USER: No problem, thank you.

ASSISTANT: Thank you for opting us.