This is pretty good. You can carry on a conversation with it. I have named it Cosmo. It might take you a while to be convinced that there is not a person responding to your text. At least it took me a while.

If you have a slow Internet connection (like I do) you will have to wait some time for the program to load. It actually downloads from Israel. Just wait until the Cosmo introduces itself, then type something in the white space, then hit your Enter key.