Query  ·  Lisbon — 2 nights, walkable, mid-range.

Three assistants. One question. Three different "best" answers.

Illustrative model. Not real hotels, rates, or assistants.

Hotels appearing in all three answers —

Same query. Three indexes. Three rankings.

Outside every assistant's index: the cheapest option and the highest-rated option in the market. No ranking rule can surface what was never acquired.