I'm new to Google Now and I don't understand why I am getting different responses to the same command. Google Now recognizes the words correctly but often seems to default to a web search. For example, sometimes I will say "Call Massage Envy" and it will dial the number and other times it produces search results. I become really frustrated when I try to schedule an appointment in the calendar and it does a web search for "schedule dentist appointment for March 3rd at 3 pm." Do other people experience this? Are there certain commands that I need to use or avoid?