You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: My scheduled examination dates has been postponed, could you please help me with changing my recent reservation?

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

USER: My reservation was done under the name Jerry Wright.

ASSISTANT: Please wait for a mean while.

USER: Sure, take your time.

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

USER: That's ok, not an issue. Anyways, thank you for the information.

ASSISTANT: You are welcome and have a great day.