I still miss Eaasy Sabre and I first used it in the early 80s when I was not yet a teenager. I used an Apple IIc and accessed this through CompuServe. We had a family friend who was an agent at a Uniglobe, so I would just tell her my itinerary and she did the ticketing. She helped me land an month long internship during high school there (we needed either community service or work experience to graduate). Eaasy Sabre helped me adapt to the GDS.

Eaasy Sabre was the only way to find a 7 segment H class US ticket which got me 25,000 bonus miles in the mid 90s. She laughed at me thinking I was paying too much since there was a V class available. But of course, I needed the qualifying fare class for the promo. I always found it amazing that back in the day when TA's got free travel, they didn't know much about the frequent flier programs let alone the promotions.