Dating, since it is a fairly new phenomenon in how humans relate to each other, is not mentioned in the Bible. But the Bible has much to say about romantic relationships, and how we should look for a future spouse.
First, the Bible highly values the marriage relationship, so any effort put into finding a spouse is worthwhile. But second, it must be recognized that our current system (in the West at least) of dating tends to be selfish, tending towards a commercial view of human relationship: i.e., “trying out” different people until we find the one that benefits me most.
Instead, the Bible encourages us to see relationships as vocations – opportunities to give ourselves up to love and serve another. This means that dating should not primarily be an attempt to find someone who can serve us, but instead an attempt to find someone we can selflessly serve with our life.