The document summarizes an intern project at Priceline to develop a recommendation engine using customer search and booking data. The interns analyzed over 1.2 million booking records and 263 million search records to identify patterns in customer behavior. Their insights found that many customers search multiple times, in multiple cities, and across different properties before booking. They developed prototypes of a Tableau dashboard and Slackbot to demonstrate how the recommendation engine could provide destination and hotel suggestions to customers. The interns believe these recommendations could increase customer engagement, repeat business, and conversion rates for Priceline.