Agree with your comment about not being given instructions of what to do afterward. ...so...now what? is what many may be left with. As a suggestion to any asking this, may I encourage all to be aware and on the lookout for the signs?
https://www.dhs.gov/blue-campaign/indicators-human-trafficking
https://www.stopthetraffik.org/spot-signs-child-trafficking/
https://www.domesticshelters.org/articles/human-trafficking/23-signs-of-human-trafficking
Hopefully this gives us better eyes to see, at the very least. Maybe even just one of us sees something and helps out an innocent victim.