Are we free?

I was thinking about something we talked about in class regarding free will.  The thought experiment had to do with a chip put into someone's brain that made sure they never smoked. But if this person just choose on their own not to smoke, was it really their choice? 

I find this interesting. They chose not to smoke but was it really a choice if there was no alternative? 

I don't believe that this person has free will. In order to be free, one has to have the ability to choose between different alternatives.  Even if this individual chose not to smoke, they couldn't have chosen to smoke. Their decision was pre-determined and even though they agreed with it, it doesn't make their decision free.