Voya.ai, a Hamburg-based startup, is using MongoDB Atlas to bring a seamless customer experience to the business travel market. The company uses natural language processing and machine learning to interpret user inputs and provide personalized recommendations for flights and hotels. Voya's chat-based app allows users to create itineraries that comply with company policies and expense processes, making it easier for businesses to manage their travel needs. By storing hotel location and metadata in MongoDB, the company can efficiently search for matching properties using geospatial queries. The use of MongoDB Atlas provides a scalable and portable solution, allowing Voya to expand globally without significant time investments from its team. With plans to add expense management and automate travel requests, Voya aims to unify the fragmented business travel market with its unified full-service travel solution.