I seem to remember a book where people starting using AI's like this to automatically improve their email/texts, eventually allowing it to do more (basic respon

I seem to remember a book where people starting using AI's like this to automatically improve their email/texts, eventually allowing it to do more (basic responses/appointment scheduling/etc), making communication a lot easier and more efficient. At some point, the boundary between simply "polishing things up" and actively guiding the interactions became blurry, and the AI eventually becomes the go between between everyone and starts taking over. We know this response has not been "enhanced" by the AI if my second and third sentences have not been filtered out.