sorry, I found the answer and not smart enough to delete thread. In case you have same question here is what I found
"The Turks are wonderful entrepreneurs and most shops that deal with tourists will accept other currencies including US Dollars and Euros. That being said, you are likely to get an awful exchange rate. If you have a credit card (MC or Visa) that does not charge foreign exchange fees this is often the best way to make purchases (even small purchases). However....if given the option to pay in the local currency (i.e. Turkish Lira) or your own currency (these options are common with credit card transactions) you should always choose the "local currency."
