Which transportation company first implemented 'dynamic pricing' digital kiosks that adjust product prices based on journey duration and real-time demand during 2019?

The transportation industry has seen remarkable innovations in how retail experiences are delivered to passengers. From in-flight shopping catalogs to high-speed train e-commerce platforms, travel time has become prime shopping time. This poll tests your knowledge about a groundbreaking retail technology integration that changed how people shop while in transit. Can you identify the correct innovation that revolutionized transportation retail?

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Virgin Hyperloop with their 'Velocity Market' system that changes prices based on pod speed and passenger demographics
Deutsche Bahn's 'BahnShop Dynamic' that uses AI to adjust prices of onboard products based on remaining journey time and inventory levels
Emirates Airlines with their 'SkyBazaar Flex' system that adjusts duty-free prices based on flight duration and destination market conditions
Carnival Cruise Lines' 'OceanRetail' platform that modifies shop prices based on days left at sea and port proximity