protected void btnCancel_Click(object sender, EventArgs e)
        {
            int  id     = Convert.ToInt32(txtReschedule.Text);
            long number = Convert.ToInt64(Session["CardNumber"]);

            try
            {
                var res = b.CheckTicketID(id);
                if (res == false)
                {
                    Response.Write("Invalid Ticket ID");
                    txtReschedule.Text = "";
                }
                else
                {
                    var cancelUpdate = b.CancelPayUpdate(id, number);
                    if (cancelUpdate == false)
                    {
                        Response.Write("Could not Cancel Ticket!!");
                        txtReschedule.Text = "";
                    }
                    else
                    {
                        Response.Write("50% Refunded!!");
                    }
                }
            }
            catch (Exception ex)
            {
                throw ex;
            }
        }