In 1998, the website began operations offering reservations at a limited selection of restaurants in San Francisco. Restaurants that signed up with the service used the company's back-end software to process the reservations made on the website, resulting in a real-time reservation system for both diners and restaurants. The service has since expanded to cover more than 30,000 restaurants in most U.S. states as well as in several major international cities. Reservations can be made online through its website. On June 13, 2014 the company announced it had agreed to terms with the Priceline Group (now Booking Holdings, Inc.) to be acquired in an all-cash deal for $2.6 billion.