Hello, I am William Carter.
user
Hello, how can I assist you today?
assistant
Due to sudden work, I need to change my reservation. Can you please help me with it?
user
Sure, please wait for a while.
assistant
Ok.
user
Thanks for waiting, there is no reservation found on your given name.
assistant
Ok, not a problem.
user
Thank you for opting us.
assistant
Thank you.
user