(Bloomberg) — OpenAI is rolling out an artificial intelligence tool that can help book flights, plan grocery orders and even complete purchases for users, joining a growing number of tech companies betting on so-called AI agents that act on a person’s behalf. The service, called Operator, can carry out a wide range of tasks by using the internet much in the way a human would, including navigating to a website, typing and clicking buttons, OpenAI said on Thursday. Operator’s software works by co