public void availableMovies(User user) {
   String header = String.format("%-20s %-6s %-20s %-5s", "MOVIE", "YEAR", "DIRECTOR", "RATING");
   System.out.println("\n" + header);
   System.out.println("==========================================================");
   if (user.isAdminUser() || user.isNormalUser()) {
     System.out.print(movieSection.listAvailableItems());
   }
   dispatcher.start(Constants.MENU_RUN, user);
 }
 public void availableBooks(User user) {
   if (user.isAdminUser() || user.isNormalUser()) {
     String header = String.format("%-20s %-20s %-6s", "BOOK", "AUTHOR", "YEAR");
     System.out.println("\n" + header);
     System.out.println("==================================================");
     String result = bookSection.listAvailableItems();
     System.out.print(result);
   }
   dispatcher.start(Constants.MENU_RUN, user);
 }