list all flights from chicago to seattle on continental airlines which depart on saturday before noon and include a meal 
return flights ;return #1 from  chicago ;return #2 to seattle ;return #3 on  continental airlines ;return #4 on  saturday ;return #5 before noon ;return #6 that  include a meal
['select', 'filter', 'filter', 'filter', 'filter', 'filter', 'filter']