At first glance, looks pretty cool. However, I find the green of the available results to be quite painful to look at. Something like #B8FC9F looks a lot better, to me.
I'm not sure what color scheme you'd like to go with, but as a colorblind user, the green and yellow colors that you're currently using are very similar to me.
Perhaps you could do a colorblind mode that uses red, blue, and yellow (out of simplicity's sake) to indicate availability? It'd make your service way more useful for me :)
