Task: Story Composition
Input (English): Premise: Amy's sister took her shopping on Rodeo Drive. 
 Initial Context: In a swanky store Amy spotted a purse she wanted to purchase. 
 Original Ending: The cashier talked on the phone with her back turned to Amy. Amy waited patiently 5 minutes to pay for her purchase. Finally she simply left the purse on the counter and left baffled. 
 Counterfactual Context: Amy didn't have enough money for the purse she wanted.
Output (English): The cashier talked on the phone with her back turned to Amy. Amy waited patiently 5 minutes to ask about a cheaper bag. Finally she simply left the purse on the counter and left baffled.