You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you for today?

USER: I am Scott Davis, I need to modify my reservation as my reservation got postponed.

ASSISTANT: Sure, please wait for a moment to check your details.

USER: Ok.

ASSISTANT: Sorry to say, there is no reservation found on your name.

USER: It's ok, anyway thank you for the information.

ASSISTANT: Thank you for reaching us, have a nice day.