Hello.
user
Hello, how may I help you?
assistant
I am Daniel Roberts. 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, please wait for a moment.
assistant
Sure.
user
Sorry, there was no reservation found with your given name.
assistant
Ok, no problem. Thanks for the information.
user
Thank you for choosing us.
assistant