I don't think sites like booking are at risk, as an assistant will just as likely use them. But there may be some kind of SEO tricks that companies like that could use to make LLM agents prefer them.

That said, I don't know about most of you but booking a hotel / flight is the kind of thing I do maybe once a year - it's too incidental (for me) to even consider automating.

That said, Google (search) is in trouble, although they're ready for it because their own AI products are solid and they already have the infrastructure and whatnot to run them, unlike e.g. Anthropic or OpenAI for who their AI products are their whole business. Likewise, Q&A sites like Stack Overflow, Quora are at risk.

Even Wikipedia is seeing less visitors, but I'm not too worried about that because visitor count isn't what they need to (or should) optimize for - their main risk is articles getting poisoned by LLM generated edits.