First of all, they should be in connect with their diners. Some of the following ways to reach the customers are

1. Social Media
2. Email
3. Mobile Phone

To make your customer happy and loyal be personalized and communicate often about their visits and purchase history.

To change one-time customer into a loyal customer by offering a freebie and discounts on specialty dish

Customers will expect the things that should in the loyalty scheme. They are

1. Easy signup
2. Access to deals and coupons
3. Easy reward Redemption
4.  Earning Points

Check out the best loyalty scheme holders of Restaurants in Chennai.