You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

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 help me to change?

ASSISTANT: Sure, can I have your name please?

USER: Sure, my name is Andrew Garcia.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, no flight reservation found with your name.

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

ASSISTANT: Thank you for reaching us.