again i will repeat i want to make a one way flight from boston to atlanta will you tell me how much the fares are i would like the cheapest fare 
return flights ;return #1 from  boston ;return #2 to atlanta ;return #3 that is one way ;return fares of #4 ;return lowest of #5
['select', 'filter', 'filter', 'filter', 'project', 'aggregate']