private void modificarReservaButton_Click(object sender, EventArgs e)
 {
     FormModificarReserva r = new FormModificarReserva();
     this.Hide();
     r.ShowDialog();
     this.Close();
 }
        private void modificarReservaButton_Click(object sender, EventArgs e)
        {
            FormModificarReserva r = new FormModificarReserva();

            this.Hide();
            r.ShowDialog();
            this.Close();
        }