Not that you will reply, but this smells like trolling...
as wombat_tg pointed out consider that there is really only one Siri, developed by a company that has essentially unlimited resources. If you have to ask "how do I" it is so far out of your element that it's laughable. Similar to asking "How do I convert my 1985 Escort to take me to a shuttle to take me to Andromeda, and I need to be back next week for a birthday party."
In the remote chance that you are not a spambot or a troll, and that you will actually read this again, I'll try to be constructive. Purely out of curiosity I looked into voice recognition libraries for VB.NET. I used them to understand when I spoke a color, then it changed my form background to the color that I spoke. I suggest that you start out with something like that. Get VB.NET express (free) then google "voice recognition for vb.net". I'm sure you could even find a youtube video that will get you going.
Once you complete that, then you should be able to get your Escort converted.
Then Siri should be no problem...