Borzoi puppy asking old cat to play

My borzoi puppy Tolkien (4 month old at this time) was trying to convince my 17 year old cat Pako to play with him, but he was not interested at all. Don't worry, they live in peace, my dog likes the cat a lot, and the cat generally ignores him and never hurts him. It's just that this time the cat really wanted to be left alone (what the dog must learn to understand too)