You will be given a definition of a task first, then some input of the task.
Given a premise, an initial context, an original ending, and a new ending, the task is to generate the counterfactual context that is aligned with the new ending. Each instance consists of a five-sentence story. The premise is the first sentence of a story, and the second sentence, which is the initial context, provides more information about the story's context. The original ending is the last three sentences of the story. Also, you are given a new ending that can provide the new story with the same premise. You should write a counterfactual context to explain the small differences between the original and new endings. More specifically, a story context contains the general plot of the story. And a counterfactual context is a slight modification to the initial context. To sum up, you should write the second sentence of a story based on the premise(first sentence) and the new ending(last three sentences) of the story.

Premise: Two cars pulled into the parking lot at the same time. 
 Initial Context: They both wanted the only open spot. 
 Original Ending: They stared each other down. One finally made the movie. The car zoomed into the space and secured it. 
 New ending: They both had to find somewhere else to go. They both carried on driving. The cars zoomed out of the car park. 
Output:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
They both wanted the only open spot but nobody got the spot that day.