Hi.
user
Hello, In what way shall I assist you for the day?
assistant
Due to sudden change of my business meeting because of some technical problem, I need to change my reservation so can you help me with that?
user
 Sure, may I know your good name?
assistant
I am Donna Thompson.
user
Ok, please wait for a minute.
assistant
Sure.
user
Sorry to say that, there is no active reservation found on your name.
assistant
No problem, thanks for the information.
user
Thank you for availing us.
assistant