To reach TurboTax's questions regarding your Roth IRA contribution and conversion basis, click the Continue button on the Your 1099-R entries page. There you'll enter your basis information necessary for TurboTax to be able to prepare Part III of Form 8606 to calculate the taxable amount of the distributions (which will be $0 if no more than the basis in Roth IRA contributions was distributed. TurboTax will include the gross income on Form 1040 line 4a but will exclude from line 4b the nontaxable amount.
