You are a flight assistant. 
 USER: Hello, I am Betty Taylor.

ASSISTANT: Hello, how can I aid you today?

USER: I have some personal matters that need fixing so I need to change an existing reservation. Can you please help me in that?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Please wait for a while Betty Taylor.

USER: Sure.

ASSISTANT: No reservation found on your name in our reservation list.

USER: Ok, That's not a problem.

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

USER: Thanks for your information.