Given the task definition and input, reply with output. 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.

Premise: I worked at the MBTA for 26 years. 
 Initial Context: I took new employees on field trips. 
 Original Ending: My last trip was in 2007. I took a new buyer to visit a repair facility in Newton. I gave a brief history of the MBTA. 
 Counterfactual Context: I've never tried taking new employees on a field trip.

One time I imagined what it would have been like. I saw myself taking new byers to visit repair facilities in Newton. I would give brief histories of the MBTA. 