Task: Question Decomposition
Input (English): question: are there any other cities that i can fly from boston to dallas through that i can get a flight earlier than 1017 in the morning 
Output (English): #1 return flights 
#2 return #1 from boston 
#3 return #2 to  dallas 
#4 return #3 earlier than  1017 in the  morning 
#5 return city that  #4 is  through