Jumping, jumping, and more jumping!

We have two goldens. Lucy is 1 year and a few months, and Nala is almost 4 months old. So both are puppies.
Lucy, the older one, is a lover but a jumper. She gets so excited to greet people, she jumps! And at 55 lbs, that’s a lot of dog to take for some people! I have taken her to training classes, and she’s a very smart dog. But the jumping just seems to be the one thing we can’t correct!
Nala, the younger one, isn’t as much of a jumper, yet. But when she’s as big as the older one, I definitely don’t want two jumpers. Help!!!