static void Main(string[] args)
{
Room room = new Room();
Restaurant restaurant = new Restaurant();
IComand roomCommands = new RoomCommands(room);
IComand restaurantComand = new RestaurantCommand(restaurant);
User user = new User(roomCommands);
user.Book();
user.Unbook();
user.Booking = restaurantComand;
user.Book();
user.Unbook();
Console.ReadKey();
}