Hello.
user
Hello, how may I aid you today?
assistant
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?
user
Sure, please share me your good  name.
assistant
Thank you for accepting my request, I have reserved it on the name of David Harris.
user
Please wait for a while.
assistant
Sure.
user
Sorry to say that, there is no active reservation found on your name.
assistant
Oh! I think the ticket was not booked due to server issue. Anyway, thank you for the information.
user
Thank you for opting us.
assistant