You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I want to cancel my reservation, so please help me in the cancellation.

ASSISTANT: Sure, may I know your name please?

USER: Myself Christopher Nelson.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: I am glad to inform you, we have found your reservation and we have cancelled it.

USER: Thank you.

ASSISTANT: Most welcome.