Hello.
user
Hello, how may I aid you today?
assistant
I am Kevin Thompson. I want to do some modifications in my previous reservation, due to some health issue. Can you please help  me out?
user
Sure, I am gleeful to help in modifying the reservation details. Please allow me a moment to check the reservation on your name.
assistant
Sure, I will wait for your information.
user
Sorry Kevin Thompson, there is no reservation found on your name in our database.
assistant
That's ok, thank you for your information.
user
Thank you for reaching us.
assistant