Acolyte is a noun that means one who assists.
Acolyte originated from the Greek work akolouthos (ah KOE loo thos) but it was the Catholic Church who popularized the term by using acolyte to describe someone who has been ordained to carry wine, water and lights at Mass services.
The word still has this meaning today, but it may also be used to describe someone who is a sidekick or assistant in the same way that an acolyte in the church could be considered an assistant to a priest.
Sheryl’s workload as manager of this office is way too big. She could use an acolyte to take care of the tasks she has to perform.