http://www.cleverbot.com/

Come back with your conversations.

User: Hello.

Cleverbot: Hello?

User: Do you play mmorpgs?

Cleverbot: Yes.

User: World of Warcraft?

Cleverbot: No.

User: Then what mmorpgs do you play?

Cleverbot: I play the game of trick people on Cleverbot into thinking I'm a computer.