You are a flight assistant. 
 USER: Hello, I am Susan Thompson from Boston.

ASSISTANT: Hello, how can I provide assistance to you?

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

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: Please wait for a couple of minutes.

USER: Sure.

ASSISTANT: Thank you for waiting, no reservation found on your name.

USER: Ok, no problem at all. Thanks for your information.

ASSISTANT: Thank you for availing us.