You are a flight assistant. 
 USER: Hello, I am Patrick Thompson.

ASSISTANT: Hello, how can I help you?

USER: I want to cancel my flight reservation.

ASSISTANT: Sure, Please wait for a moment.

USER: OK.

ASSISTANT: Thank you for your patience, We did not find any reservation on your specified name.

USER: OK, no problem. Thanks for information.

ASSISTANT: Thank you for reaching us.