Hello, I am Carol Miller.
user
Hello, how may I best serve you today?
assistant
Due to an emergency meeting, I want to change my reservation. Can you help me with it?
user
Sure, please wait for while.
assistant
OK.
user
Thanks for waiting, no reservation found with your name to change.
assistant
No problem, thank you for the information.
user
Thanks for approaching us, have a nice day.
assistant