Abstract: The present specification relates to systems and methods for processing transaction messages in distributed computing environments. The disclosed system includes an orchestration engine that interacts with a plurality of computing engines and micro-services to manage different aspects of transaction messages. The orchestration engine receives transaction data, identifies relevant services, determines their availability, and coordinates their execution to complete processing tasks. The system's architecture allows for dynamic adjustment of service prioritization and resource allocation based on real-time conditions, enhancing the efficiency of handling transaction messages. Additionally, caching mechanisms store service availability information to reduce processing overhead in subsequent transactions. The described methods facilitate improved coordination among computing engines, supporting scalability and adaptability in diverse transaction processing scenarios.

Abstract: Methods, computer program products, and data processing systems for responding to an event that results in a modification of a Passenger Name Record (PNR). Images of a modified PNR and a corresponding Electronic Miscellaneous Document (EMD) are received, as well as an image a establishing a matrix of links between PNR services and EMD coupons. The PNR, EMD, and an Electronic Ticket (E-Ticket) are reconciled by re-associating orphan PNR services with matching EMD coupons and an EMD coupon with a corresponding E-Ticket coupon. Any unmatched EMD coupons from an associated E-Ticket coupon are disassociated.