Chatbots have become the hot new way that companies like H&M, Domino’s, and CNN are interacting with consumers. The artificial-intelligence-powered bots act like a virtual concierge, able to provide instant assistance around the clock. For a wedding, a chatbot can be a simple way to provide answers to guests’ questions, such as “What time is the reception?” and “Where do I park?” It also can be used for push notifications, for example to let guests know the bride and groom are about to cut the cake. A basic D.I.Y. solution from companies such as Chatfuel, which walks users through the steps to create a bot, will likely be all that's needed. The bot works through Facebook Messenger—and it’s free.