Can you cancel a hotel reservation through the hotel if you booked via a travel site?

[k.bai]

I recently booked a trip to New York to visit family for New Years. I included a hotel stay in my package. I am now planning on staying with a family friend therefore no longer need the hotel reservation. I looked at the site I booked with and the only way to do so is if you cancel the whole package which I don't want to do. Also, it says the hotel reservation is nonrefundable.