I’ve had some success with google assistant calling restaurants to make reservations, when they are phone only. I expect it’s a matter of time until they can camp on my doctors office. Or call my insurance and pretend to be me.
The funny thing is, these auto-callers don't even need to be successful. They just need to become common enough for restaurants and doctors to get annoyed to the point where they finally bring their processes to the 21st century.