I need a "machine digrams "about self-resturant system please Please, quickly it like this description

Firest Start with Customer when he/she login to the system and selects his/her language preference for the system. Then, Customer display order window and selects the menu from it.After that, Customer places an order from the available choices from the drinks menu, meal menu and dish menu.After finish the selecting he/she display compleat order. Then the system will ask user if it is a final order or not .If it is a final customer must pay bill and then resturant chef print the bill and start prepare food. After prepar food the order will be rady to take, but if its not a final order returan bake to the menu and order again