Don't focus too much on trying to combo on this level or she will beat you to everything.  What you want to do is try to seat everyone to get the color bonus, and then just try to do everything you can.  Try to serve the dessert or snack (I cant remember which one this level has), but if she is one her way to deliver the dessert, you can beat her out & steal her points by just delivering the check.  Let her deliver drinks to keep people happy & clear tables.  You may have to help her clear tables, but just be ready to seat someone or she will do it for you.  Hope this helps! Have fun!!

I have the Dash Pass.  You will still get Wedding Dash 2, Parking Dash, Fashion Dash, plus one more game coming up in addition to the Cooking Dash that you already have.  If you really like the Dash games (which I LOVE!), and you don't already have those, I think it's a good deal!