You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you for the day?

USER: I want to cancel my reservation which is done recently due to heavy floods, can you please help me out?

ASSISTANT: May I know your good name?

USER: Sure, my name is Helen Mitchell.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Sorry, we found no reservation on your given name.

USER: Ok, not an issue. Thank you for your service.

ASSISTANT: Thank you for reaching us.