i read this article sometime ago...
http://www.actuaries.asn.au/Library/Events/FSF/2012/AnalyticsOfLoyalty3BChandlerTubman.pdf
regardless, of seeming no patterns, there are patterns
In this article
Predictive Analytics World: How to Lower Costs with Predictive Analytics
Sure Things
Persuadables
Do not disturbs
Lost Causes
The absence of viewing the website or logging in or purchase of a QF product is also indicative
eg taking one way fares from a location to another. Obviously you had to be able to get back there some other way....
the $ you spend
http://peoplelikeu.com.au/
even if they don't have exact financial info on you there's indicative info that substitutes for it.
the $ you spend on a ticket, the type of ticket is it you or your business or
the points you earn from credit cards can be matched up to work out an income calculation. Even your job title can be weighted. Chief bottle scrubber v assistant director, director, senior director all point to an income level as does age, residential addy plus who else you buy tics for eg children..
Loyalty is hard earnt but far more easily lost