You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I am Dorothy Johnson. I want to cancel my reservation, can you help me.

ASSISTANT: Sure, I am here to help you out. Please allow me a moment.

USER: Sure.

ASSISTANT: Sorry Johnson, there is no active reservation on your name in our records.

USER: That's ok, thank you for your information.

ASSISTANT: Thank you for reaching us.