You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Can you please help me to cancel my reservation due to bad weather conditions at my place?

ASSISTANT: Sure, may I know your name please?

USER: Thank you for accepting my request and my name is Donald Green.

ASSISTANT: I am sorry no reservation found on your name.

USER: Not a problem, thank you.

ASSISTANT: Thank you for choosing us.