Labels are not given for multiclass classification problem
Your problem is associated to "unsupervised" learning in machine learning. You do not have a data set that has training data - meaning that data points with correctly specified labels are not known yet. 

You can try different approaches to group/label your data set using the given features. You probably have to check by yourself if your model is "auto"-labeling your data correctly. 


Clustering (k-Means)
Decision Trees
Auto-Encoding with NNs


More Approaches