private void BtnCheckout_Click(object sender, EventArgs e)
{
Order.Customer.FirstName = txtFirst.Text;
Order.Customer.LastName = txtLast.Text;
Order.Customer.PhoneNr = txtPhone.Text;
DataSetter SetData = new DataSetter();
SetData.SetCustomer(Order.Customer.PhoneNr, Order.Customer.FirstName, Order.Customer.LastName);
LoadEventReservations();
SetData.SetEventReservation();
MessageBox.Show($"You booked {Order.Reservations.Count} ticket(s).");
Order.RemoveData();
listSeats.Items.Clear();
this.Hide();
}
