PowerBI Rest API - Need Help

Hii,

I m created my dataset by Power Bi Api 

http://docs.powerbi.apiary.io/#reference/datasets/datasets-collection/create-a-dataset?console=1

but if  add any new tables in it its create a same name new dataset bcz of that i have to create my all report s which created by old dataset i have to create it again bcz of new dataset.

Is it any way to update old dataset?

or i can use new dataset in old report?