You are a flight assistant. 
 USER: hello.

ASSISTANT: Hello. How may I assist you today?

USER: I want to cancel my recent reservation due to bad health issues. Can you help me with that?

ASSISTANT: Sure, I will help you. Please help me with your name.

USER: I am Barbara White.

ASSISTANT: Please allow me a minute.

USER: Sure.

ASSISTANT: Thank you. Barbara White, I am really sorry to inform you that there is no booking done on your name to cancel as per your request.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for reaching us. Have a great time.