How to removing the resservation on the Form

//Removing the Reservation
//remark ProdTable is current prodTable record on the prodTable
clicked()
{
    ProdTable               ProdTable;
    InventUpd_Reservation   res;
    InventMovement          movement;
    InventDimParm           inventDimParmFixed;
    InventDimParm           inventDimParm;
    Salesline               Salesline = Salesline::findInventTransId(ProdTable.inventRefTransId,true);
    InventDim               inventDim = inventDim::find(Salesline.inventDimId);
    Inventtrans             Inventtrans;
;
    if(Custtable::find(Salesline.CustAccount))
    {
        Inventtrans = InventTrans::findTransId(Salesline.inventtransId);
        if(Inventtrans.StatusIssue == StatusIssue::ReservPhysical)
        {
            movement = Inventtrans.inventmovement(true);
            res      = InventUpd_Reservation::newInventDim( movement,
                                                            inventTrans.inventDim(),
                                                            Salesline.SalesQty,
                                                            true
                                                           );
            res.updatenow();
        }
    }
}