You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how can I help you?

USER: I have to attend to my brother's engagement but its cancelled, so I need to cancel my reservation.

ASSISTANT: Sure, may I know your name please?

USER: By the way I am George Collins.

ASSISTANT: Sorry to say that, there is no reservation found on your name.

USER: OK, Thank you for your information.

ASSISTANT: Thanks for choosing us.