When I wake up before the alarm goes off, I have to be present at the phone right at 6 AM so as to dismiss the alarm. It would be very handy to just tell Cortana that I am already awake, so that the current day's alarm is bypassed. I had tried this morning, but Cortana basically disabled the morning alarm entirely, meaning I would have to re-enable it again after 6 AM passes by. Workable, but not ideal.