Since I know no one here...introduce yourselves!

Have him feed him treats, groom him, give him bathes, and, maybe, let him sit on Dakota and get a feel for him. Have him interact with Dakota as much as possible to show him that Dakota is a good horse.

at my riding stables we don't have a lipizzaner. there is a lipizzaner x fjord mare named Vienna but that is it. you are so lucky!

I'm not even sure if I've ever seen a Lippizaner in real life................. :(