Over the next few months, however, Siri's limitations became apparent. Ask her to book a plane trip and she would point to travel websites?but she wouldn't give flight options, let alone secure you a seat. Ask her to buy a copy of Lee Child's new book and she would draw a blank, despite the fact that Apple sells it. Though Apple has since extended Siri's powers?to make an OpenTable restaurant reservation, for example?she still can't do something as simple as booking a table on the next available night in your schedule. She knows how to check your calendar and she knows how to use OpenTable. But putting those things together is, at the moment, beyond her.