assistant

I ask them.

私は頼みます

I ask the assistant to get things ready.

私は助手に準備を頼みます

I ask the assistant to get things ready at the studio.

私は撮影所で助手に準備を頼みます

I ask the assistant to get things ready at the studio before filming.

私は撮影前に撮影所で助手に準備を頼みます

I ask the assistant to get things ready at the studio with the director before filming.

私は監督と撮影前に撮影所で助手に準備を頼みます