Complex sentence: Non-AC flights are usually smaller and generally serve CCF units or ATC Sqnadrons organised special slots, these run from Tuesday to Friday and are less likely to be assisted by flight staff who are usually either in education or work.
Split into simpler sentences: Non-AC flights are usually smaller and generally serve CCF units or ATC Sqnadrons organised special slots. These run from Tuesday to Friday and are less likely to be assisted by flight staff who are usually either in education or work.