Find the abbreviation and country of the airline that has fewest number of flights?
return airlines ;return flights of  #1 ;return number of  #2 for each  #1 ;return #1 where #3 is  lowest ;return abbreviation of  #4 ;return country of  #4 ;return #5 ,  #6
['select', 'project', 'group', 'superlative', 'project', 'project', 'union']