Pavel Sakalou developed a course reservation feature for the JustJirka/P6PP repository, enabling users to book courses directly through the application interface. He implemented the reserveCourse method within the Angular-based CourseComponent, connecting it to the CourseService to handle booking logic and provide real-time user feedback via success and error alerts. The work included updating UI selectors to ensure correct component wiring and a seamless reservation flow. Using TypeScript and HTML, Pavel focused on maintainable commit practices and clear UI feedback patterns. The feature improved the booking workflow and established a scalable foundation for future course management enhancements.