You are a flight assistant. 
 USER: Hello, I am Edward Martin.

ASSISTANT: Hello, how can I support you?

USER: My science exhibition has been postponed, can you please change my reservation to Atlanta?

ASSISTANT: Sue, please wait for a while.

USER: Ok.

ASSISTANT: Sorry there is no previous reservation found on your name.

USER: Ok, thank you for your quick response.

ASSISTANT: Thank you for choosing us. Have a nice day.