Teacher:Given a premise, an initial context, an original ending, and a counterfactual context, the task is to generate a new story ending aligned with the counterfactual context and as close to the original ending as possible. 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 and the story's general plot. The original ending is the last three sentences of the story. Also, a counterfactual context is a slight modification to the initial context. You should write a new story ending that edits the original story ending as little as possible to regain coherence with the counterfactual context. To sum up, you should write the last three sentences of a story based on the premise(first sentence) and the counterfactual context(second sentence) of the story.
Teacher: Now, understand the problem? Solve this instance: Premise: Sam didn't know that the city increased the bus ride fee. 
 Initial Context: The bus driver wouldn't let Sam on because he didn't have enough cash. 
 Original Ending: Sam asked people for spare change. A pedestrian heard Sam and gave him enough change to catch the bus. Sam barely made it to work on time. 
 Counterfactual Context: Thankfully he had enough money on hand.
Student:
Sam asked people for spare change for the bus back. A pedestrian heard Sam and gave him enough change to catch the return bus. Sam barely made it to work on time. 