You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I am Gregory Harris. I want to cancel my reservation, due to heavy rainfall.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Sorry, no reservation found with your name.

USER: Not an issue. Thank you for your service.

ASSISTANT: Thank you for choosing us.