31. A method comprising: at an electronic device: receiving input representing user instruction to provide a reminder in the future, the user instruction identifying an entity; and after receiving the input: detecting, by a microphone of the electronic device, an audio input; identifying, in the detected audio input, a voice corresponding to the entity; and in response to identifying the voice, providing the reminder.
31. A method comprising: at an electronic device: receiving input representing user instruction to provide a reminder in the future, the user instruction identifying an entity; and after receiving the input: detecting, by a microphone of the electronic device, an audio input; identifying, in the detected audio input, a voice corresponding to the entity; and in response to identifying the voice, providing the reminder. 35. The method of claim 31 , wherein providing the reminder comprises providing an audio output.