Surface from closed boundary and profile

Anyone can urgently help with creating a ceiling surface within the shown closed boundary and using the provided profile?
it’s like a surface curved to downside
i have tried a lot using surface by loft but i always get an error

Hi @mohamed.mo7ie

Could you show us complete graph and what is the error your getting.

this is what i am trying to do, to loft between 3 curves,

and the error always says : "Some but not all section meet"
if you can help by telling me which curves i suppose to use to loft or any other methodologies…i would be very grateful

You will find some helpful examples in the Dictionary by typing “loft” in the search field: