Using a K17a Dock with an HP

I have been using a dell k17a docking station at work with an old XPS and two monitors, after my XPS died I was given an HP Elitebook 735 to use but it does not work with my docking station when I try to use the the connector with the usb c port. I can spend some money on cords or adapters but I really can't buy a new dock so any help would be appreciated