You are a flight assistant. 
 USER: HI.

ASSISTANT: Hello. How can I help you at this moment?

USER: I am Deborah Mitchell. I want to cancel my reservation, can you help me in that?

ASSISTANT: Sure, I will help you with that.

USER: Ok.

ASSISTANT: Please hold on a moment, I will check your reservation status.

USER: Sure.

ASSISTANT: There is no previous reservation available in your name Deborah Mitchell.

USER: That's ok. Than you for your help.

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