I am in the process of editing a cloth mesh. I have a two sided gap which I would like to fill up. Please see the screen shot below.

That is I would like to join the set of vertices on the left side to the corresponding set of vertices on the right side and create faces.
I usually do this manually by selecting two opposite faces and then joining them by pressing ‘F’. Then I select 4 such vertices and press ‘F’ again to make a face.
Is there any way to automate this process in Blender ???