What he means is that his name is Amilcar Huertas machado, and he is a food distributor. He learned about your food from the Internet, and he was very interested in dog food. He asks you about the price and other matters, whether to conduct international trade according to FOB price, letter of credit or TT. If the negotiation is successful, you can get a big order from their company.
How to reply? You can see for yourself. You can say thank you for your concern and interest in our products, and then talk about your company's foreign trade transaction specifications. You can write this yourself. Generally speaking, it is an opportunity.