Hello.
user
Hello.
assistant
My name is Jason Miller.
user
How can I help you?
assistant
I want to change my existing reservation due to my health issue. Can you help me in change reservation?
user
Sure, I will help you.
assistant
Ok.
user
Sorry to inform  that there is no reservation on your name.
assistant
Ok, No issues. Thanks for sharing information.
user
Thank you for approaching us.
assistant