Startup Idea: Intelligent Customer Block Feature for Restaurant POS System

Startup idea to develop a 'block' feature integrated into a restaurant's POS system, taking into consideration phone numbers, addresses, names, and ordering habits of a given customer. The feature aims to protect the restaurant and its employees from disruptive customers by restricting orders and maintaining a manageable blacklist.

I'm a back of the house staffer (cook + phone operator) at a major pizza delivery restaurant that has 36 employees (both back of the house and drivers) and uses an in-house system for all store operations.

It's not unusual to deal with someone on the phone or face-to-face who would be worth giving the block to (be it a lying customer, a prank calling kid, or someone who's known for making drivers feel unsafe). But our system can't block their phone numbers or addresses entered through the ordering system, and thus makes it harder for me to recognize then in the future.

The ideal solution would be a "block" button in the customer's profile that ensures that we don't receive orders from them (we'd notify them, of course!). It could start with pattern recognition from their associated phone numbers and addresses, but could also recognize their names + ordering habits if they tried to skirt their ban.

It could also be linked to a blacklist (in the same application) that shows all of our blacklisted customers by date, who blocked them, and for what reason. It could also include an "unblock" button if the managers deem that a phone operator's block on a customer wasn't justified. I did via "[name of store's POS system] block OR blacklist OR blocking", but no results popped up. The best I can do is write to the HQ about this, but I'm not a manager.