Hello, I am Charles Jackson.
user
Hello, how can I help you today?
assistant
I have some personal matters that's need fixing so I need to change an existing reservation. Can you please help me in that?
user
Ok, please wait a moment.
assistant
Sure.
user
Sorry to say, no reservation found with your name.
assistant
Ok, no worries. Thanks for your information.
user
Thanks for reaching us.
assistant