You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I want to cancel my reservation, so please help me in the cancellation.

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

USER: Myself Paul Wilson.

ASSISTANT: Please allow me a minute.

USER: Ok.

ASSISTANT: Paul Wilson, I am really sorry to say that there is no booking found on your name to cancel.

USER: Not an issue. Thank you.

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