Thanks. Very simple. My artist wife has been awarded a scholarship to study/teach for a week in Florence, including economy airfare. She will travel from Vancouver and does not want to travel in economy. The sponsor insists on using their travel agent and will not purchase a business class fare, even if we agree to reimburse the difference. Thus, coordinating an upfare within 24 hours of initial purchase of an economy ticket seems a reasonable plan of action. It sounds as if the travel agent will need to process both transactions?