You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you today?

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, let me know your name please?

USER: Thank you, my name is Anthony Gonzalez.

ASSISTANT: Please stand by.

USER: Sure.

ASSISTANT: Sorry, no reservation found on your name in our portal to change it.

USER: Oh! I think the ticket was not booked due to server issue. Thank you for your information.

ASSISTANT: Thank you for contacting us.