Passenger Train Configurator

using System.Text.RegularExpressions;

namespace PassengerTrainConfigurator
{
    internal class Program
    {
        static void Main(string[] args)
        {
            Dispatcher dispatcher = new Dispatcher();
            Train train = new Train();
            Direction direction = new Direction();

            const string CreateTrainCommand = "1";
            const string ExitCommand = "2";

            bool isWorking = true;
            string userInput;

            while (isWorking)
            {
                Console.ForegroundColor = ConsoleColor.Cyan;
                Console.WriteLine("Конфигуратор пасажирских поездов.\n");

                Console.ResetColor();
                Console.WriteLine($"Чтобы создать новый поезд нажмите - {CreateTrainCommand}.\n" +
                    $"Для выхода из программы нажмите {ExitCommand}.\n\n" +
                    $"Ввод:");

                userInput = Console.ReadLine();

                switch(userInput)
                {
                    case "1":
                        dispatcher.CreateTrain(train, direction);
                        break;

                        case "2":
                        isWorking = false;
                        break;

                    default:
                        Console.WriteLine("Неизвестная комманда.");
                        break;
                }

                Console.ForegroundColor= ConsoleColor.DarkCyan;
                Console.WriteLine("\n\nДанные по каждому поезду:");
                Console.ResetColor();

                dispatcher.ShowTrainInfo();

                Console.ReadKey();
                Console.Clear();
            }
        }
    }

    class Train
    {
        public Dictionary<int, int> CreateTrain(int numbersOfPlace)
        {
            Van van = new Van();
            Dictionary<int, int> train = new Dictionary<int, int>();

            int vansCount = RoundUpDividing(numbersOfPlace, van.CountSeats);

            train.Add(vansCount, numbersOfPlace);

            return train;
        }

        private int RoundUpDividing(int numerator, int denominator)
        {
            decimal numeratorInDec = Convert.ToDecimal(numerator);
            decimal denominatorInDec = Convert.ToDecimal(denominator);
            decimal resultInDec = Math.Ceiling(numeratorInDec / denominatorInDec);

            int result = Convert.ToInt32(resultInDec);

            return result;
        }
    }

    class Direction
    {
        private List<string> _cities = new List<string>();

        public Direction()
        {
            _cities.Add("Москва");
            _cities.Add("Санкт-Петербург");
            _cities.Add("Тверь");
            _cities.Add("Краснодар");
            _cities.Add("Саратов");
            _cities.Add("Нижний Новгород");
            _cities.Add("Тверь");
            _cities.Add("Ростов-на-Дону");
            _cities.Add("Анапа");
            _cities.Add("Сочи");
            _cities.Add("Петрозаводск");
        }

        public Dictionary<string, string> MakeDirection()
        {
            Random random = new Random();
            Dictionary<string,string> direction = new Dictionary<string, string>();

            string departyreCity = _cities[random.Next(0, _cities.Count)];
            string arrivalCity = _cities[random.Next(0, _cities.Count)];

            while (departyreCity == arrivalCity)
            {
                arrivalCity = _cities[random.Next(0, _cities.Count)];
            }

            direction.Add(departyreCity, arrivalCity);

            return direction;
        }
    }

    class Van
    {
        public int CountSeats { get; private set; } = 36;
    }

    class Dispatcher
    {
        private Dictionary<Dictionary<string, string>, Dictionary<int, int>> _trainReadyDepart = new Dictionary<Dictionary<string, string>, Dictionary<int, int>>();

        public void CreateTrain(Train train, Direction direction)
        {
            _trainReadyDepart.Add(direction.MakeDirection(), train.CreateTrain(SellTickets()));
        }

        public void ShowTrainInfo()
        {
            foreach (var item in _trainReadyDepart)
            {
                for (int i = 0; i < item.Key.Count; i++)
                {
                    Console.WriteLine($"Поезд отправляется из города {item.Key.Keys.ElementAt(i)} в город {item.Key.Values.ElementAt(i)}.\n" +
                        $"Билетов продано - {item.Value.Values.ElementAt(i)}.\n" +
                        $"Поезд состоит из {item.Value.Keys.ElementAt(i)} вагонов.\n\n");
                }
            }

        }

        private int SellTickets()
        {
            Random random = new Random();

            int minNumbersOfTickets = 1;
            int maxNumbersOfTickets = 1800;

            int numbersOfTickets = random.Next(minNumbersOfTickets, maxNumbersOfTickets);

            return numbersOfTickets;
        }
    }
}