You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How could I aid you today?

USER: I want to cancel my reservation, due to bad weather at my destination. Can you please help me with this?

ASSISTANT: May I know your name please?

USER: Sure, I am William Mitchell.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: There is no reservation found with your given name.

USER: Ok, Thank you.

ASSISTANT: Thank you for opting us.