Seeing as that’s a pass through space I might suggest a banquette under the window with a small round cafe table with only 2 loose chairs.

I suspect your best bet is a round table with chairs.

Waht do you need for seating. It loos to be quie small so probably max 2 chairs and a small round table . If you want real help we need to know the size of the space and how many seats you need. Where is the DR ? IMO I would not do an eat in space for more than 2 there