You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Brandon Miller, I want to change my reservation. Due to change in my plan to visit Atlanta.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Thanks for waiting. We do not found any reservation on your name.

USER: Thanks for the information.

ASSISTANT: Thanks for reaching us.