As a product manager building a travel product for Facebook, my first step would be to identify the target audience and their needs. This would involve conducting market research and user interviews to understand what features and functionality they would find most valuable in a travel product. Once I have a solid understanding of the target audience and their needs, I would work with a cross-functional team to develop a product roadmap and prioritize features based on user feedback and business goals. This would involve working closely with designers, engineers, and other stakeholders to build and launch a minimum viable product (MVP) that addresses the most critical user needs. I would also focus on building strong partnerships with travel industry providers, such as airlines, hotels, and car rental companies, to offer users a seamless and comprehensive travel booking experience. This would involve negotiating partnerships and integrations, as well as ensuring that our product complies with all necessary regulations and guidelines. Throughout the development process, I would regularly gather and analyze user feedback to ensure that our travel product is meeting user needs and expectations. This would involve conducting user surveys, analyzing product usage data, and monitoring social media and other channels for user feedback. Finally, I would work to continually improve and iterate on our travel product, based on user feedback and changes in the travel industry. This would involve regularly releasing new features and updates, as well as monitoring industry trends and competition to ensure that our product remains competitive and innovative.