You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you now?

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, I am happy to help you with that.

USER: Thank you.

ASSISTANT: Can I have your good name please to check your reservation status?

USER: I have done it on the name of Debra Parker.

ASSISTANT: Sorry Debra Parker, no reservation has found under your name to change.

USER: Oh! I think the ticket was not booked due to server issue.

ASSISTANT: Thank you for choosing us, have a good day.

USER: Anyway, thank you for the information.

ASSISTANT: Most welcome.