I love that story and the photo! Those were the days when people dressed up to go on an airplane. I've never been on an airplane with two levels and a piano. I don't suppose those things exist any more, certainly not the piano.
I do remember flying from Oregon to Texas when my brother was commissioned in the Air Force, in the late 1960s. It must have been a very important occasion for my parents to spend money to fly there for it. My sister and I went along, too. We flew Northwest Orient Airlines. The stewardesses changed clothes several times, always fancy outfits.