You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I abet you?

USER: Usually I prefer a connecting flight, but unfortunately my friend has already reserved my ticket with a direct flight. So, I want to change it. Can you aid me to change it?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: May I know your good name please?

USER: My name is Jerry Roberts.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Thank you for being on hold. We are sorry to inform you that there is no reservation found with your name.

USER: That's Ok, thanks for your information.

ASSISTANT: Thank you for opting us.