private void btnAddNewCustomer_Click(object sender, EventArgs e)
{
ResetMessages();
try
{
string name = txtName.Text;
int flightId = int.Parse(cbFlightId.Text);
Customer customer = new Customer(name, flightId);
customerController.RegisterCustomer(customer);
UpdateCustomerGrid();
lblMessageCustomer.Text = "New Customer Added";
}catch (Exception ex)
{
lblMessageCustomer.Text = ex.Message;
}
}