Mechanisms are provided for performing an operation based on an identification of similar lines of questioning by input question sources. The method includes receiving initial passenger name record data in a travel management system, retrieving stored PNR data corresponding to the initial PNR data by a business intelligence engine, and automatically creating and storing a PNR, by the BI engine, according to the initial PNR data and the stored PNR data. The controller, by operation of the compressor, fans, damper andor valve system, depending on the appliance configuration, controls the cooling rate in one or both compartments to synchronize, alternating cycles of cooling the compartments to their set point temperatures. In a detecting step, while executing the third step, it is detected whether said sector is defect. One longitudinal edge of the slot presents a sharp cutting edge.