At some point in the mid-late 1990s, I recall having a (technically-inclined) friend who dialed up to a BBS and spent a considerable amount of time pinging and then chatting with Lisa, the “sysadmin’s sister”. When I heard about it, I spent quite some time arguing with him that Lisa was a bot.

bbs.hmvh.net/hmvh/lisa/LISA.HTM

textfiles.com/bbs/install.txt