Which retail innovation first allowed airline passengers to completely bypass human agents when checking in for their flights?

The transportation industry has transformed its retail strategies over the decades, particularly with how consumers purchase tickets and services. From traditional counter service to sophisticated digital platforms, transportation companies have innovated their retail approach to improve customer experience and operational efficiency. This trivia question tests your knowledge about a significant retail innovation that changed the transportation landscape forever.

This is a live public trivia poll on AIPolls.Net. Vote and see real-time results.

Self-service kiosks introduced by Continental Airlines in 1995
Online booking systems introduced by American Airlines in 1985
Mobile boarding passes introduced by Scandinavian Airlines in 2001
RFID luggage tracking introduced by Delta Airlines in 2005