show me flights on sunday going from san francisco to boston nonstop first class leaving after 12 noon 
return flights ;return #1 from  san francisco ;return #2 to boston ;return #3 on  sunday ;return #4 that  are nonstop ;return #5 in first class ;return #6 leavings after noon
['select', 'filter', 'filter', 'filter', 'filter', 'filter', 'filter']