Please Help Us To Build A New, Easier, and Faster Way of Shopping

Hi everyone. Here, I need your help to build an application that will help us to shop easier and faster. All of us, of course, have experienced a moment when we are in a mall, in a hurry. We need to buy several things from several stores. Or, we are just feeling lazy to queue to get something. What should we do?

The application we are going to build, will allow us to deal with this situation. Firstly, in the application, we can choose the location (the shopping centre you are in at the moment). Then, we will see the store options (the stores in that mall) and the items we can buy. Just choose our items (we can choose items from different stores at once), then pay online (can use e-wallet, bank transfer, etc). After we pay, our items will be prepared by the stores soon. Congratulations, we just come to each store and get the items quickly. You don't need to queue anymore.