Interesting read, but I'm reminded of a famous quote from physics Nobel laureate Nils Bohr who once quipped, "It's really hard to make accurate predictions, especially about the future."
I agree that there will be fewer travel agents because the demand is decreasing. However, there will likely always be demand for some of them for more complicated trips and packages.
Lawyers, financial planners, etc. - not in our lifetime. AI is nowhere near that level and will probably take many decades to get there. Plus, once it's there, I'm sure there will be folks who are too wierded out to deal with an AI instead of a human.