A travel booking engine manages currency conversion by integrating real-time exchange rates and providing multi-currency support. The engine fetches current exchange rates from financial data providers to ensure accurate conversions for various currencies. During the booking process, users can view prices in their preferred currency, which enhances transparency and user experience. The system automatically calculates the equivalent amount based on the selected currency, ensuring accurate billing and payment processing. Multi-currency support allows travelers to make payments in their local currency, facilitating international transactions and improving convenience. Additionally, the booking engine may offer features such as currency conversion calculators and historical exchange rate data to assist users in making informed decisions. Overall, effective currency conversion handling in a travel booking engine ensures seamless transactions and enhances the user experience for global travelers.