It is not clear if this dude is root of the problem. Siri doesn't work well in
1) environments with noisy backgrounds
2) user has a funky accent that is too hard for even the AI to understand
3) you must ask questions that makes sense, it can not be baby-talk...
This is why it's effing hard to run a successful business in America...you can get sue by some random idiot for no good reasons. Siri doesn't work as advertised? Go get an Android buddy!