Dear girls, ladies, pets, slaves, and gentlemen! When someone sends you a message, it's not necessary to answer. However, it's harsh to just ignore this message only because you are not interested. I believe that the community has a nice and friendly atmosphere, so feel free to HIT the "No Thanks" button. It will give the other side a clear message that you are not interested, not busy, not in a rush, but not interested!
If you change your mind later, you can text anyway to that person.