Hello. I am Jacob Taylor.
user
Hello, how may I help you?
assistant
I want to change an existing reservation, can you please help me in that?
user
Sure, please wait for a moment.
assistant
Sure.
user
Sorry to say that, there was no reservation found with your given name.
assistant
That's ok, not a problem. Thanks for your information.
user
Thank you for opting us.
assistant