Has the engineer finished servicing the soft serve machine yet?

How to say “Has the engineer finished servicing the soft serve machine yet?” in Japanese

In Japanese

業者(ぎょうしゃ)さん、ソフトクリームマシンの整備(せいび)はもう終(お)わったって？

Gyōshasan, sofuto kurīmu mashin no seibi wa mō owatta tte?

Has the engineer finished servicing the soft serve machine yet? in other languages