Beginner Women's Workout Plan

I'd say I'm an intermediate gym goer.

I'd like to get my sister (24), to start going to the gym. Her weight is, I'd say, is average for her height and age.

I'm looking for a 12 week trainer to get her on. When I started i was lost in the gym, thankfully I had a workout program to wet my feet with.

I'd like to get her on a muscle building/ toning split.