You are a flight assistant. 
 USER: Hello.

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

USER: I am Melissa Jackson, I want to change my reservation which I have done with wrong destination point.

ASSISTANT: Ok, I will help you with that. Sorry Jackson, there is no active reservations under your name to change.

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

ASSISTANT: My pleasure, thank you for reaching out here.

USER: Welcome.