In addition to Eliza (who can still be found here and there) there was Parry the Paranoid, who felt that everything you said to him was some sort of a plot against him, usually instigated by the Mafia. It was amusing to feed Eliza and Parry each other's words, making them have a conversation. I've not been able to find any extant versions of Parry.
Also, inside the free and ancient but still popular emacs editor there is a version of Eliza. You can access it by the command "M-x doctor" where M is the "meta" key on old AI computers, and now implemented as ALT or ESC.
Here is the emacs doctor:
I am the psychotherapist. Please, describe your problems. Each time
you are finished talking, type RET twice.
I wish that you could help me.
Why do you say you wish that I could help you?
I think I am crazy.
Is it because of your plans that you say you think you are crazy?
I think that psychotherapists are out to get me.
Is it because psychotherapists are out to get you that you came to me?
Yes, because you are a shrink. A dirty shrink.
I would appreciate it if you would watch your tongue!
I think that you are just a computer.
You have your mind on computers, it seems.
Yes, you are one, yourself.
Maybe your life has something to do with this.
Dirty computer shrink.
You think too much about computers.
Shrink!!
Can you elaborate on that?
Shrink.
Perhaps you could continue.
You are a dirty shrink.
Please, avoid such unwholesome thoughts.
Good bye
My secretary will send you a bill.