AI travel agents have improved rapidly over the past two years. KAYAK launched AI Mode in 2025 and expanded it with Ask AI in 2026. Booking.com has continued to expand the AI trip-planning tools it first introduced in 2023, while adding new products for specific parts of the journey, including AI-powered car rental search and assistance. Both illustrate travel search moving from lists of results toward natural-language conversations. An AI agent can turn a lengthy search process into a highly…