It has to recognize that it's seeing a face and eyes, but it doesn't need to recognize that the face belongs to John Smith, Frequent Flyer #0123456789
The airline already knows who is sitting in the seat, and also their ff#
How do they know which party that would be? Facial recognition, obviously.
It has to recognize that it's seeing a face and eyes, but it doesn't need to recognize that the face belongs to John Smith, Frequent Flyer #0123456789