You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How exactly I can serve you the best 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, I can change your reservation right now. Before that I need to know your good name please?

USER: Thank you, I have reserved it on the name of Angela Taylor.

ASSISTANT: Ok, wait for some time I will check the reservation on your name and get back to you.

USER: Sure, take your time.

ASSISTANT: We are sorry to say that, there is no active reservation found on your name.

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

ASSISTANT: Thanks for choosing us.