You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: Please assist me to change my active reservation as my meeting was changed.

ASSISTANT: Sure, I am here to help you. May I know your good name please?

USER: Brandon Taylor.

ASSISTANT: Ok, please wait for a mean while.

USER: Ok.

ASSISTANT: Sorry Taylor, there is no active reservation found as per your name to modify it in your database.

USER: Ok, no problem. Thank you.

ASSISTANT: You are welcome.