Old news is old.
In 1972, ELIZA (as "The Doctor", at BBN (tenex?)) and PARRY (at SAIL) had a conversation at the first ICCC ... Well, they had a conversation that was followed over the ARPANET during the ICCC. It was immortalized in RFC 439.
More leftovers from SAIL here. Not much has changed in 47 years ... right, amfM?