You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I'm Joseph Brown.My business meeting has been cancelled, so I would like to cancel my recent reservation which is under my name.

ASSISTANT: Sure. Give me a moment.

USER: Ok.

ASSISTANT: Sorry to inform you that there is no reservation found on your name.

USER: That's ok.

ASSISTANT: Thank you for reaching us.

USER: You are welcome.