Growing up a popular Chinese restaurant in my hometown had a system like that. Their main business was phone orders for pickup. After a while when I called they

Growing up a popular Chinese restaurant in my hometown had a system like that. Their main business was phone orders for pickup. After a while when I called they would ask if I wanted what I got last time and if I would like to ask anything. Occasionally they would put an extra item in my order and then next time ask if I enjoyed it. Great place, but for whatever reason they eventually fell out of popularity and closed.