private static void Main()
        {
            var rulesEngine = new RulesEngine<TicketHolder>();
            var ruleSet = rulesEngine.LoadRuleSetFromFile();

            Console.WriteLine("Press space to modify rules, otherwise press any key to execute the rules...");

            if (Console.ReadKey().Key == ConsoleKey.Spacebar)
            {
                ruleSet = rulesEngine.LaunchRulesDialog(ruleSet);
            }

            var ticketHolders = GetTicketHolders();

            Console.WriteLine("Before the rules are applied");
            DisplayTicketHolders(ticketHolders);

            ticketHolders.ForEach(ticketHolder => rulesEngine.ProcessRuleSet(ticketHolder, ruleSet));

            Console.WriteLine("After the rules are applied");
            DisplayTicketHolders(ticketHolders);

            Console.ReadKey();
        }