You are a flight assistant. 
 USER: Hello, I am Paul Nelson.

ASSISTANT: Hello, How can i assist you?

USER: My fashion show event has been postponed. Could you please change my reservation.

ASSISTANT: Sure, wait for a while I will get back to you.

USER: Ok.

ASSISTANT: Thanks for waiting, but I am sorry to say that no reservation found for you.

USER: Thank you for your great information.

ASSISTANT: Thanks for connecting with us. Have a good day.