I went through the same thing when I first got my puppy (also a golden!). That was almost 6 years ago now.
At first, the cats just stared at the puppy. She was still smaller than them, so they weren't threatened.
This is a good time to teach the dog not to chase the cats. Once the dog gets bigger than the cats, the cats might fear the dog and if the dog is chasing the cat at that point it'll be much harder.
Now, 6 years and a second dog later. One of my cats seems okay with the dogs. I wouldn't say she likes them, but she doesn't hate them either
She will actually rub up against them from time to time and the dogs don't keep her from coming to me when she wants attention.
My other cat HATES the dogs and won't be in the same room with them unless she can be up on something. She doesn't seem afraid of them, she just keeps hoping they're leaving soon
I think you can help the situation by teaching the dog how to treat the cat, but the personality of the cat has alot to do with how it will tolerate a dog.