static void Main(string[] args)
        {
            var factory = new BuilderFactory();
            dynamic helloWorldBuilder = factory.ABuilderFor<HelloWorld>();

            HelloWorld helloWorld1 = helloWorldBuilder.WithMessage("Today is {0}")
                                                      .WithDate(DateTime.Today)
                                                      .Value;
            HelloWorld helloWorld2 = helloWorldBuilder.WithMessage("Yesterday was {0}")
                                                      .WithDate(DateTime.Today.AddDays(-1))
                                                      .Value;
            Console.WriteLine(helloWorld1);
            Console.WriteLine(helloWorld2);
            Console.ReadKey();
        }