You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you for today?

USER: My business meeting has been cancelled. So, I would like to cancel my recent reservation which is under my name.

ASSISTANT: Can I have your name to check whether your reservation is existed or not?

USER: Sure, I'm Raymond Miller.

ASSISTANT: Sorry, there is no reservation found under your name.

USER: Ok, no issues. My brother might have cancelled my reservation.

ASSISTANT: Ok, thank you for reaching us.

USER: Anyways, thank you for checking.

ASSISTANT: You are welcome.