But who is "you"? Obviously, "Duplex" talks on the phone on behalf of people needing an appointment, ie, not everyone. And specifically, not the people tasked with answering the phone, who are duped into thinking they're having a human interaction when in fact they're talking to a machine. It's even worse than that. We're used to telling machines to do things for us. But the people answering Duplex calls are being told what to do, by a machine.
When GPS became popular I had a friend who absolutely refused to get one because, she said, she "wouldn't take instructions from a machine".
At the time, I thought that was the silliest thing ever.
Now I completely get her point.