More or less the same as social media but for agents, perhaps?

When I want to book an airline ticket in the future, I expect my LLM agent to contact the airline LLM agent, and the two to discuss options and negotiate a deal on my behalf.

Negotiate? For an airline ticket? When's the last time a human did that and why would an agent? There's a price, and if you don't like it you go to a competitor you don't call customer service and negotiate? Who in their right mind would let an LLM set prices?