Maybe a departed loved one who's trying to connect with you? Or maybe somebody is thinking about you somewhere. Ask this person to come to you in a dream. It worked for my friend.
Whoever it is, tell them if they can't say anything besides your name, bugger off. Seriously, what good does it do to simply say your name over and over? If they have a message, they should give that, otherwise, they seem like a pain in the ass. Also you might have a ghost situation going on. Next time it happens, pay attention to how you feel physically and emotionally.