If a person enters a restaurant in a Muslim market, and the meat is imported from a non-Muslim country, and…

If a person enters a restaurant in a Muslim market, and the meat is imported from a non-Muslim country, and he asks whether the imported meat is slaughtered according to Islamic guidelines, what is the ruling of eating it in the following cases: 1-If the restaurant owner confirms that the meat is slaughtered according to Islamic guidelines? 2-If the restaurant owner states that he does not know whether the meat is slaughtered according to Islamic guidelines or not? 3-If the restaurant owner remains silent and does not answer the question?