Task: Question Generation
Input (English): #1 return flights 
#2 return #1 on  delta 
#3 return #2 from  denver 
#4 return #3 to san francisco 
#5 return #4 on  august thirtieth 
#6 return #5 early in the morning 
#7 return are there  any  #6
Output (English): do you have a delta flight to san francisco from denver on august thirtieth in the early morning