If you want to test how well robots (or artificial intelligence agents if you think about a human robot when hearing the word robot) can have a normal discussion, then you can test it here. Ramona is a virtual person, and here, you can chat with her. I tested her ability to follow a normal conversation with and I have to say she does quite well.
Accoring to KuzweilAI.net (the hosts of Ramona), Ramona is the first live virtual performing and recording artist. You can learn more about her here.
I noticed that the discussion flows a lot better if you just answer her questions at the start till she has enough information about you. It's astonishing to see how much progress artificial intelligence has made. when are we going to have a pet imitation which is not dirty and to which you can talk (I am ironic of course)? Imagine virtual medical assistants which could talk to old people so that they do not feel alone! I can't wait for the future!
Marwane El Kharbili