Hello. I am Donna Harris.
user
Hello, how may I aid you at this moment?
assistant
I want to change my existing reservation, due to some health issue. Can you please help me out?
user
Sure, I will help you. Please wait for a while.
assistant
Thank you.
user
Sorry, there is no reservation existing on your name.
assistant
That's ok, thank you for checking.
user
You are welcome, have a nice day.
assistant