Task: Question Generation
Input (English): #1 return flights 
#2 return #1 from  pittsburgh  
#3 return #2 to boston 
#4 return #3 that  depart pittsburgh  after 7pm 
#5 return #4 that  are direct 
#6 return #4 that  are connecting 
#7 return #5 , #6
Output (English): show me all flights from pittsburgh to boston both direct and connecting that depart pittsburgh after 7pm