You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Frank Davis, I want to cancel my reservation due to my health problem. Could you please help me?

ASSISTANT: Sure, May I know your name to proceed?

USER: You can proceed.

ASSISTANT: Thanks for your time. Unfortunately we did not find any reservations on your name.

USER: OK, thanks for you service.