Database for mobile application.

We have an android application ready designed, and need someone to do the database with explanations in details to make my graduation project. It is an app for hotel reservation like fairmont & marriout apps with forms new account & check avilability. Attached screenshots. And need a detailed explanation for the code for my graduation project. We need database for attached 3 pages & need the page of enroll, when we do an account, we can sign in from the sign in page. (linked with it)