Hello.
user
Hello, how can I assist you for the day?
assistant
I am Lisa Adams. I am planning to change an existing reservation, due to health issue. Can you please change my reservation?
user
Sure, please hold for a moment, let me check the previous reservation.
assistant
Sure, I will wait.
user
Sorry to tell you, there is no reservation found with your name in our reservation list.
assistant
Not an issue, anyhow thank you so much for your help.
user
 Lisa Adams, thank you approaching us.
assistant