I am organizing a dinner for people that will be coming from South America. They are staying in midtwon (around the diamond district), so I would prefer something relatively close but not necessarily right there. Any type of food that is not extraordinarily unusual for them would be ok (I wouldn't do ethiopian, let's say)- a nice NY experience would be great. I can pay around $50p/p for food plus wine, tax and service. And I would need it to be somewhat quiet, so conversation is easy.