Startup Idea : Find a player

There are a lot of public playing spaces available for free or some reasonable charge. These spaces allow you to book the venue for a given duration. As a player, it is sometimes difficult to make a group and convince people, that you know, to join you at the venue for a game. I want to create an app that will connect players, who are willing to play, with each other. A player can find another player to for a game, or a group can find a substitute player for their game.