Hello how may I help you? Please change my 10:30 alarm. sure, what would you like to change? Please change the time to 11:30. Okay I have done that for you. Can you also change the sound to vibrate? Of course, do you want it to make a sound as well when it's on vibrate? No sound is necessary. Okay, I have set that alarm to vibrate. Anything else? No. that's it. Thanks bot Take care then. You're welcome.