design an app simulation like open table (ongoing project)

I need to build a reservation and ordering system like opentable with some extra features. what i need in the system 1- android/ios app for the normal user 2-web based control panel for the admin with accounts to the managers and supervisors. 3-website for the company with all the features in the mobile app 4- windows desktop application for the restaurants to manage the reservations, orders, and bills. this will be the next step in our project. what i rely need now is a simulation to the ios and the desktop applications witch means an example about how the system is going too look like with a video to explain what we are producing, so i need for now: 1- a design for the application that we are going to stick with later 2- one example explained in video showing a summery about the mobile app 3- an simulation to the windows application showing a reservation process and a ordering process and a bill information process (just one example clarifying the idea) **the third point is the most important one so it has to be done just as i want ***we will start with developing the system in 10 days after finishing this project so who will take this one have to prove his capability to finish the whole project***