You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I need to cancel my reservation as I need to stay back in my own city due to my house has collapsed by Floods. Can you help me out?

ASSISTANT: Sure, may I know your good name?

USER: I have made my reservation on the name Helen Mitchell.

ASSISTANT: Please wait for a moment.

USER: Ok.

ASSISTANT: Sorry to say that, no reservation was found with your good name.

USER: No issue, thank you for your information.

ASSISTANT: Thank you for opting us.