If he is messaging you about spells or casting one for him or anything like that look and see if he has a profile picture and a bio. People come on here just for spells and then leave, not knowing the basics.
To be honest, I would tell him to meditate and study.
And, if he is messaging you, why doesnt he ask himself?
I usually delete and block people when they message me about spells or the like. Sometimes they are just trolls or looking for an easy way out.