Property Management System (RESERVE_IT) is a hotel management system which designed implemented using Spring Boot for the back end and AngularJS for the front end. The purpose of this system is the creation of a web application that will simplify and speed up hotel management. More specifically, connected users depending on their role in the hotel will have access to specific parts of the application. The most important features of this web application are the reservation system, contract creation for tour operators, pricing, the display of some statistics with the help of charts, as well as the development of a customized web service that enables real-time communication between this PMS and a booking application for the online room selling.