You're Asking Too Much of Chat Bots. Just Let Them Grow Up

And that's probably the reason he's into the Google service that automatically generates replies to incoming messages. Smart Reply, as my editor will tell you, is pretty smart (It is!--Ed.). Having analyzed millions of messages from across Google's Gmail service, it can guess how you might respond to a particular missive. That may sound impersonal, but it's useful. It lets you instantly reply to someone when you don't have time to open a laptop or even tap out a message on your smartphone.