Hello.
user
Hello, how may I support you today?
assistant
 I am Donna Adams want to cancel my reservation due to prepone of my brother wedding.
user
Ok, I will help you with that. Please wait for a moment, while I search for the reservation.
assistant
Ok.
user
Thank you for waiting, sorry to inform you there is no any reservation found on your name.
assistant
Thank you for your service.
user
Thank you for visiting us, have a nice day.
assistant