@Laura2592
I don't necessarily means bookings, but every time your site is accessed, either by you to make some alteration, or someone else who requires a response, it triggers the placement algorithm.
If you are in an area where there is a bit of competition and things are slack it pays to put the price down a dollar or two for a few days then put it up again, add a picture, reword your text, put in another amenity. Doing this keeps your listing 'fresh'. It gives the algorithm the impetus to promote your listing.
Airbnb will tell you the algorithm responds to views and that is probably logical because the higher your search placement, the more people are going to see it! But views in itself are not going to do the job, if nothing is happening despite lots of views your placement will slip and consequently, so will the views. The trick is to maintain that higher search placement
Cheers......Rob