You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: My business meeting has been postponed, could you please help me with changing my recent reservation?

ASSISTANT: Ok, may I know your name please for further process?

USER: I am Ronald Phillips.

ASSISTANT: Ok, please wait for a mean while.

USER: Sure.

ASSISTANT: Sorry Ronald, there is no reservation found as per your name to change your reservation.

USER: That's ok, no issues. Anyways, thank you for the information.

ASSISTANT: Thanks a lot for reaching us.