When I started in the industry airline tickets were hand written, automated systems were rare and we had to call the airline to check availability/pricing/and book a seat.
I've seen a lot of progress, and a few stumbles.
At 9, my father took me on my first airplane. I thought the Stewardess' (yes, that's what they were called) were so glamorous. At 18 I applied be become one of them.
My DNA worked against me, I was 2 inches to short. Bummer!
So I became an agent and had a lot of fun.