Capturing the details of the wedding day is not only important for the couple since they very likely spent a lot of time choosing, planning, and building them, but it’s important for vendors too. Being able to share some of your images of their work with them means they basically do free advertising for you. Just make sure that they agree to tag you / reference you as the photographer.
If you can, try and time photographing the dinner set up when the sun has dropped to keep the light levels relatively low. Then, light the candles. It really makes for a much more interesting image and the bokeh alone can even elevate the shot.