You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: My name is Richard Campbell. I would like to cancel my reservation, could you help me out?

ASSISTANT: Sure, please wait a moment I will check your reservation details and proceed with your cancellation.

USER: Sure, take your time.

ASSISTANT: Sorry to say, there is no active reservation on your name in my database.

USER: That's ok.

ASSISTANT: Thank you for reaching us, have a nice day.

USER: Thank you for your help.