public enum SeatTypes
{
    Casual,
    Premium,
    Business,
}

public class Seat
{
    public int SeatNumber {get; set;}
    public bool IsReserved {get; set;}
    public string Mark {get; set;}
    public SeatTypes SeatType {get; set;}
    

    public Seat(){}

    public Seat(int seatNumber, string mark = "NoName", SeatTypes seatType = SeatTypes.Casual)
    {
        SeatNumber = seatNumber;
        IsReserved = false;
        Mark = mark;
        SeatType = seatType;
    }

    public void Reserve()
    {
        IsReserved = true;
        System.Console.WriteLine($"Miejsce {SeatNumber} zostało zarezerwowane.");
    }

    public void CancelReservation()
    {
        IsReserved = false;
        System.Console.WriteLine($"Rezerwacja na miejsce {SeatNumber} została anulowana.");
    }
}