You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: I want to cancel my existing reservation on the name of Nicholas Parker.

ASSISTANT: Ok, please wait a moment I will check and get back to you.

USER: Ok.

ASSISTANT: Sorry to inform, no reservation found with your name.

USER: Ok, not an issue. Thanks for the information.

ASSISTANT: Thanks for the help.