You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you today?

USER: I want to cancel my recent reservation because of my health issues.

ASSISTANT: Sure, may I know your good name?

USER: My name is Raymond Carter.

ASSISTANT: Please wait for a moment. I will check and get back to you.

USER: Sure, take your time.

ASSISTANT: Thanks for waiting, no reservation was found with your name.

USER: Ok, no problem.

ASSISTANT: Thanks for choosing us.

USER: Thank you for your information.