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Comment by jknoepfler | Hacker News Reader

If I say I want to fly on Tuesday, 2/2/2029, with a departure between 8-11am, economy, and ask you to show me options sorted by cost (descending), you should show me exactly those results.

You could offer me a flexible search option, as some sites do (+/- x days on flight times, etc.). Great! Now I can request that we search within a date range. Nice! That might be a good feature for some people!

Offering a simple query interface that returns what it says it will doesn't mean we can't offer flexible search parameters.

Flights are a terrible example of where I'd want to offer fuzzed results... having booked flights on the wrong day before, the last thing I want is to ask for X, but get offered Y.

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There are so many decisions other than just the dates that you implicitly make (or are made for you when you book your flight). Do you want insurance? Wi-Fi? Extra leg room? Turbo prop aircraft? Jets only? 2-3-2 seating? 3-3 seating?

Logically, you should want to control each of these variables while searching for flights. If you are ready to trust a flight aggregator with these choices, some fuzziness in price seems acceptable too.

You are probably thinking that you don’t want to make a choice about aircraft type or seating configuration and so, whatever the search engine shows in whatever order is fine by you. If so, consider that others might have the same ambivalence towards price fuzziness.

I can kinda understand (though not always agree with) fuzzy matching in the case there are 0 results that match the given filters. Something like a heading entry "No matches found. Showing closest matches" or maybe even just always sticking them at the end of short results lists. I can't understand just assuming every match for any search should be fuzzy just because there might be a use case it helps for certain searches. Or even a "fuzzy match" type filter option, though I think you'd find extremely few people actually use it.

I.e. the UI needs to be there to efficiently help the user do what they ask not to try to be smarter than the user. Unless the user asks for fuzzy matches it doesn't make sense to make the response lead with them.

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