private void button1_Click(object sender, EventArgs e)
        {
            var form = new addSpecialOffer(mc, model);

            form.Dock = DockStyle.Fill;
            form.Show();
        }
        private void buttonAddRoom_Click(object sender, EventArgs e)
        {
            addSpecialOffer so = new addSpecialOffer(mc, model);

            so.Show();
        }