My area has a dial-a-ride service where you can schedule a ride and they essentially make an on demand bus route for it. I've never actually used it though because it's just really not convenient. You have to call a dispatch number to schedule trips like 3 days in advance, and can only cancel 24 hours before your trip. And you can only schedule trips on certain weekdays (doesn't run on weekends at all) depending on which city/town you're leaving from or going to.