Hello.
user
Hello, how may I help you today?
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 Stephanie Carter.
user
Sorry, we found no reservation on your given name.
assistant
No problem, thanks for the information.
user
Thank you for opting us.
assistant