dNTP concentration for reverse transcription from RNA to cDNA
You will probably be fine. Lower dNTP levels might reduce the amount of product you obtained since it is usually the primers or the dNTPs that run out near the end of the reaction. The only other effect I am aware of is that the reaction might be slightly less specific as dNTPs sequester magnesium which is a big factor in determining the stringency of the reaction. 

You say how many microliters you used but it would be more useful if you mentioned the concentrations of the dNTPs and the desired final concentration.