"Sure! Here's a rewritten version of your restaurant review:
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Let me start by sharing my experience at Elephants Deli in Lake Oswego, where I stopped by to grab a sandwich for dinner this evening. I had never been to an Elephants before, but I had heard some good things about the place and was eager to try it out. Unfortunately, I ended up feeling misinformed and disappointed. When I arrived, I was told they were out of the sandwich I had initially wanted to order, which left me baffled—how can a deli run out of sandwich meat? It turns out that their sandwiches are all pre-made, and they had simply sold out of the particular one I was looking for.
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Feel free to ask for any further edits or additions!"