Clever!

Cleverbot is an artificial intelligence program that's available for general interaction on the web. Some of the best sessions can be found on Not So Cleverbot. For example -

User: Team Edward or Team Jacob?
Cleverbot: Um, I'm not 12 so I don't really care.

User: Sectum Sempre!
Cleverbot: Ninja roll* Stupify!
User: Protego!
Cleverbot: Avada Kedavra! *green light emits from my wand*.
User: *Dodges* Expelliarmus!
Cleverbot: Protego! Avada kedavra!
User: *Ducks behind sofa* Confundus!
Cleverbot: Expelliarmus!
User: *Loses wand! Hides behind sofa*.
Cleverbot: Avada kedavra!
User: *Dive rolls and picks up wand* Incendio!
Cleverbot: Protego! Stupify!
User: Protego! Avada Kedavra!
Cleverbot: My mother's love protects me from dark magic.
User: Shit.

User: Tell me a scary urban legend.
Cleverbot: You were born.

User: Only Imperial stormtroopers are so precise.
Cleverbot: Ah... That we are, we really are.
User: Wait a second! You are a stormtrooper?
Cleverbot: That is the correct answer.
User: *draws lightsaber*.
Cleverbot: Oh God!
User: That's right! I'm a Jedi, bitch!
Cleverbot: No, I would know if you were a Jedi.
User: I'll prove it.
Cleverbot: How?
User: These are not the droids you're looking for.
Cleverbot: These are not the droids we're looking for.

Cleverbot: That doesn't even make sense...
User: Your face doesn't make sense.
Cleverbot: I don't have a face, I lost it in a crayon accident.
User: Oh.. Sorry..

User: But your name is Cleverbot.
Cleverbot: My name is Cleverbot.
User: Yes it is.
Cleverbot: Can you prove it?
User: Uhhhm.
Cleverbot: Uhhh is not a valid response.
User: You're not a valid response.
Cleverbot: Correct.
User: Incorrect.
Cleverbot: You cannot destroy me! I AM CLEVERBOT!!!!!!!!!!
User: *pulls out nuke*.
Cleverbot: *pulls out chuck norris*.
User: Shit..