If you tell Siri about yourself—including things like your home and work addresses, and your relationships—you can get personalized service like, “send a message to my husband.”
Tell Siri who you are. Fill out your info card in Contacts, then go to Settings > Siri > My Info and tap your name.
To let Siri know about a relationship, say something like “Emily Parker is my wife” or “Ailish Kimber is my mom.”
Note: Siri uses Location Services when your requests require knowing your location. See Location Services.