Hello,. I am Robert Lee.
user
Hello, how can 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, please wait for a moment.
assistant
Sure.
user
Sorry to say that, no reservation was found with your given details.
assistant
Ok, no issues.
user
Thank you for opting us.
assistant
Thanks for the information.
user