You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: I have an earlier reservation to sign a new contract for new project, due to some problems it got postponed. Can you please help me in changing my reservation?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: May I know your good name?

USER: Sure, I am Shirley Martin.

ASSISTANT: Sorry to inform you that there is no active reservation on your given name.

USER: Oh! I think the ticket was not booked properly due to server issue. Anyway, thank you for the information.

ASSISTANT: Thank you for opting us.

USER: Welcome.