Hello, I am Catherine Davis.
user
Hello, how may I aid you today?
assistant
Due to an emergency meeting, I want to change my reservation. Can you help me with it?
user
Sure, I am here to help you. Please wait for a few minutes.
assistant
OK.
user
Thank you for waiting, we are sorry to say that no reservation was found based on your name.
assistant
No problem, thank you for the information.
user
Thank you for choosing us.
assistant