In the picture you can see the next elements:
The solid body
We activate a loft feature and we select all the elements starting from solid body to surface and 2D sketch and finishing with a point.
Click OK and we have formed a part.
If I decide to add another point on the start position,
And I activate the loft feature. I select a solid body and a point.
I will get something like this. One thing you must have in mind when creating a loft with the points is that a point can only be placed in the start or in the end of the loft