You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: I am James Smith. Please change my existing reservation to new locations.

ASSISTANT: Sure, I am here to help you out. Please allow me a moment.

USER: Sure.

ASSISTANT: Sorry Smith, there is no reservation on your name.

USER: It's ok, thanks for your information.

ASSISTANT: Thank you for reaching us.