The other field office, which reported saving about $32,000 over 6 years, also noted that multiple changes in contract carriers have made it more difficult to accumulate and effectively use frequent flyer miles.
The number of changes in contract carriers made it easier for customers to efficiently use frequent flyer programs.
mnli hypothesis: The number of changes in contract carriers made it easier for customers to efficiently use frequent flyer programs. premise: The other field office, which reported saving about $32,000 over 6 years, also noted that multiple changes in contract carriers have made it more difficult to accumulate and effectively use frequent flyer miles.