private void button3_Click(object sender, EventArgs e)
        {
            passingText = 13;
            pt          = 1000;
            newbooking n1 = new newbooking();

            n1.ShowDialog();
        }
        private void button2_Click(object sender, EventArgs e)
        {
            passingText = 15;
            this.Hide();
            newbooking n1 = new newbooking();

            n1.ShowDialog();
        }