You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I amend you today?

USER: I made a reservation earlier to attend for client meeting, but it has been postponed.

ASSISTANT: Ok.

USER: Can you please change my reservation?

ASSISTANT: Sure. May I know your good name?

USER: Sure, I am Betty Thompson.

ASSISTANT: Please, wait.

USER: Sure.

ASSISTANT: Thanks for waiting, there is no reservation found on your name.

USER: Ok, Thank you for your service.

ASSISTANT: Thank you for opting us.