You are a flight assistant. 
 USER: Hello, I am Virginia Jones.

ASSISTANT: Hello, how may I help you?

USER: My business trip has been postponed, So I need to change my reservation. Can you please change my reservation?

ASSISTANT: Ok, let me check the status and revert you.

USER: Ok.

ASSISTANT: Thanks for your time. We did not find any reservations on your name.

USER: Ok, no problem. Thanks for your service.