Is it okay if I eat at a halal restaurant that serves beer/alcohol?

I have an exchange program at Madrid, Spain for 5 months.

There is a lot of restaurant here that show Halal at their restaurant name, for an example Palmira & La Libanesa (at Gran Via,Madrid).

When I get into the restaurant, I saw there is alcohol served in the menu.

For confirmation I ask them , "Is it Halal?" , they said "Yes, it is Halal!"

and I ask them why you served cerveza/beer here, they said it is common in here.

So my question is it okay for me to eat there, or should i look for other restaurant or just make my own meal (cook)?

There is no answers. Be the first answerer.