[UPDATE, Nov. 2, 2017: We published new information related to this article here.]
[UPDATE, March 8, 2017: Amadeus-connected travel agencies in Canada and the United States now can "seamlessly access and book" Air Canada's Preferred and Advance paid seats, according to the global distribution system operator. Agents within their standard workflow can use seat maps furnished by Amadeus to sell the paid seat options at the time of initial booking or after the ticket is issued.]
Amid handwringing over the . . .