1. A method of operating a digital assistant, comprising: at a device having one or more processors and memory: providing a list of notification items, the list including a plurality of notification items, wherein each respective one of the plurality of notification items is associated with a respective urgency value; detecting an information item; determining whether the information item is relevant to an urgency value of a first notification item of the plurality of notification items; upon determining that the information item is relevant to the urgency value of the first notification item, adjusting the urgency value of the first notification item; determining whether the adjusted urgency value of the first notification item satisfies a predetermined threshold; and upon determining that the adjusted urgency value satisfies the predetermined threshold, providing a first audio prompt to a user.