The dining room is an essential part of your home, regardless if you have a small or large family. This is so because these days, the modern architecture calls for open spaces and so you will probably not have enough space in your kitchen to fit a good quality dining table.
What you can do with your modern architecture space is to have the dining room with the kitchen. However, to carry off this particular look, you have to make sure that the design and setting of the dining room matches the theme that you have in the kitchen. Explore your options and you will probably end up with some pretty good ideas.