Hi Kassandra21
Welcome to the community boards!
Not absolutely sure if you realise this question has not been posted to an airbnb help desk, just to lots of other hosts and guests who read these forums.
To answer your question - I'm 99.9% certain it can't be done - the airbnb platform doesn't offer the option to alter minimum guest numbers for specific dates - I would like to be able to do the same myself.
I think the best you could do would be to create a duplicate listing and in settings create the specific rules for the specific dates as you require, then make those dates in your first listing unavailable - so guests can only book the way you want
Other more experienced hosts may be better advice
Good luck!