Don't show sold out tickets

if ( ( !$product->is_in_stock() ) || ( empty( $start_date ) || time() > $start_date ) && (  empty( $end_date ) || time() < $end_date ) ) {

    $is_there_any_product = true;

    echo sprintf( "<input type='hidden' name='product_id[]' value='%d'>", $ticket->ID );

    if ( $product->is_in_stock() ) {

        echo "<tr>";
        echo "<td width='75' class='woocommerce'>";

        woocommerce_quantity_input( array( 'input_name'  => 'quantity_' . $ticket->ID,
                                           'input_value' => 0,
                                           'min_value'   => 0,
                                           'max_value'   => $product->backorders_allowed() ? '' : $product->get_stock_quantity(), ) );

        $is_there_any_product_to_sell = true;

        echo "</td>";

        echo "<td nowrap='nowrap' class='tickets_name'>";
        echo $ticket->name;
        echo "</td>";

        echo "<td class='tickets_price'>";
        echo $this->get_price_html( $product );
        echo "</td>";

        echo "<td class='tickets_description'>";
        echo $ticket->description;
        echo "</td>";

        echo "</tr>";
    }
}