Core Insights - The article discusses the advancements in AI services by online travel agencies (OTAs) such as Ctrip, Qunar, and Fliggy, particularly in providing personalized travel itineraries for users during the National Day and Mid-Autumn Festival holiday [1][19]. Group 1: AI Travel Planning - Qunar's AI system generated two detailed travel plans for a three-day trip to Chengdu based on user preferences, including budget and accommodation type, within just five seconds [2][3][5]. - The first itinerary included visits to popular attractions like the Giant Panda Breeding Research Base and local cultural sites, with specific transportation and dining recommendations [5][10]. - Fliggy's AI service offered a more interactive experience, allowing users to choose from various roles for personalized assistance, and provided detailed suggestions for transportation, meals, and activities [11][17]. Group 2: User Experience and AI Capabilities - The AI-generated travel plans were noted for their detailed nature, covering aspects such as transportation, accommodation, attractions, dining, and even restroom locations, enhancing the user experience [20]. - The AI systems demonstrated a "human-like" understanding by offering thoughtful suggestions, such as bringing snacks and identifying potential traffic congestions, showcasing the advancements in AI algorithms [20][21]. - The technology behind Fliggy's AI involves a multi-agent collaboration architecture, allowing for high precision in travel planning by breaking down tasks into specialized agents for flights, hotels, budgeting, and route planning [20].