I tried to use the loft tool but I didn't get it.
Please, Take a look in the attached file to see what I missed.
Thanks for your help.
if you want to use loft, the best way is to make lines for the path as " splines ".
The best way for me is to make a sketsch on the end of the first " loft " en then make a sketsch on the end of the next path. so on a,nd so on.
Hope this was helpfull.