Hello.
user
Hello, how may I aid you?
assistant
I am Dennis Lee. Due to my health problem I want to change my reservation, can you please help me to change my reservation?
user
Sure, I am here to help you out. Please allow me a moment.
assistant
Sure.
user
Sorry Lee, there is no active reservation on your name in our data base.
assistant
That's fine. Thank you for your service.
user
Thank you for reaching us.
assistant