1. A method comprising: identifying, via a processor, a first segment of a dialog turn associated with soliciting a first probable user response as part of a dialog with a dialog system; identifying, via the processor, a second segment of the dialog turn associated with soliciting a second probable user response, wherein the first segment and the second segment are further identified based on a first timing of the first probable user response and a second timing of the second probable user response; activating a first weighted grammar for the first segment of the dialog to process speech received during the first segment, to yield a first activated weighted grammar, wherein the first weighted grammar is weighted based on a user profile which consists of information about a number called from, demographic information, account information, a time of day, and a date; activating a second weighted grammar for the second segment of the dialog to process speech received during the second segment, to yield a second activated weighted grammar; recognizing user speech received during the first segment of the dialog using the first activated weighted grammar; and recognizing user speech received during the second segment of the dialog using the second activated weighted grammar.