You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you at this moment?

USER: I am Nicole Moore, I want to change my reservation which I have done last week.

ASSISTANT: Sure, I will help you with that. Sorry Moore, there is no active reservations under your name.

USER: It's ok, anyway thank you for the information.

ASSISTANT: Thank you for reaching out here. Hope you have a nice day.