I'm writing a story about few foreigners doing a work stint on a small island country, ~500K. The country is quite similar to the western world except dating is mandatory for every single person, with a few exceptions like you are too old, sick, your spouse died recently etc.
The mandatory dating is explained as a local custom and serves as a plot device. The custom stems from local belief that single people are incomplete and they should couple up. However since they have free will to decide singles can't be forced but they must show that they try. Something like the way that trying to find a job shows that you are not too lazy to work and that you really want a job.
My story is about the psychological effects of pressure to couple up. The mood is similar to Lost in translation.
There's a dating app where every citizen has an account, which lists the chronological information about that person. Like pictures from childhood till present year, schools you attended, places you lived, jobs you had etc.
There are three phases that recur one after the other which last 1 month each. First phase men ask women, second phase women ask men (like Bumble), third phase 3rd parties match make users.
I need some idea how should matchmaking work. In real world you might play matchmaker between friends, family or maybe colleagues i.e. people you know quite well. But you can't infer much from profile.