Hello.
user
Hello, how may I help you?
assistant
I would like to change my reservation as I have some personal work at home, so please help me to change.
user
Sure, may I know your name please?
assistant
Sure, I am Michelle Robinson from Washington.
user
Ok, please wait for a moment.
assistant
Sure.
user
Sorry, there was no reservation found with your name.
assistant
No problem, thanks for your effort.
user
Thank you for opting us.
assistant