You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today from my end?

USER: Myself Kathleen Young, I need to change my existing reservation, can You please help me out?

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

USER: Take your time.

ASSISTANT: Sorry Kathleen Young, there is no active reservation on your name in our database.

USER: It's ok, thank you for searching.