You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Christopher Young.

ASSISTANT: How can I assist you?

USER: I would like to cancel my recent reservation, can you help me with this?

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Sorry, no reservation found on your name to cancel.

USER: That's fine, thanks for your information.

ASSISTANT: Most welcome.