のお手伝いを

help with …

→ の
phrase Rare #27,239
help with … Follows the person or task being helped and is usually followed by する, meaning “to help” or “to assist.”
JA: 宿題のお手伝いをします。
EN: I’ll help with the homework.

“旅のお手伝いをするお仕事です”

It’s a job helping people travel.

— Departures (2008)

旅のお手伝いをするって…あ…ち違うんですか?

I thought you were going to help me on my journey… Ah… w-was I wrong?

— Departures (2008)

台所でママのお手伝いをしたの。

I helped Mom in the kitchen.