You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help 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,  we are here to help you. May I know your name?

USER: Thank you for accepting my request, my name is Helen Garcia.

ASSISTANT: Ok, wait for some time.

USER: Sure, take your time.

ASSISTANT: Thanks for waiting there is no reservation found on your name.

USER: Oh! I think the ticket was not booked properly while I am booking.

ASSISTANT: Thanks for approaching us.

USER: Anyway, thank you for the information.