Hello. I am Jessica Hall.
user
Hello, how can I assist you?
assistant
I want to change my existing reservation. Please help me with it.
user
Sure, I will help you. Please wait a moment.
assistant
Ok.
user
We are sorry to inform you there is no existing reservation found in your name.
assistant
Ok, not an issue at all. Thanks for the information.
user
Thanks for choosing us.
assistant