One time I died my hair blonde because I was tired of being a brunette. Have you ever changed your hair color?
Yes i have i like to died  my hair brown sometimes and maybe a little blond
Did you do it yourself, or have it professionally done? 
I had it done by a professional, one time i tried it myself and it looked horrible
Yeah, I don't think I would trust myself doing it at home. I know many people at work who dye their hair wanting to hide grey hairs. 
What exactly do professional hair stylist do other than to died hair
Professional hair stylist also cut and style hair too. They don't just dye hair. 
When has the last time you dyed your hair?
It was around 6 years ago, how about you? I probably won't ever dye it again, I have grown fond of my current hair color.