It's truly weird that my 70yo mother can buy plane tickets or book a hotel without a hassle but someone claiming to be 10x programmer can't figure out how to use a website to do this and thinks that an agent is the best option. As you've noted, many airlines and hotels have made the process extremely streamlined (unless you're trying to get a "deal" in which case yeah, it's going to be more complicated).

Really, the problem is that a lot of people that are all-in on AIs aren't very good at a lot of life's little details so they think that AIs will solve everything and don't understand why nobody else agrees. If they got out and lived a little they would quickly realize that AIs are overkill or just the wrong tool for most things, but they have to actually experience life to learn that.