Could you check, please, if there is any mistake? "Luda greeted Dima. She wanted to know where he had been. She added that she hadn't seen him for ages. Dima said hello back and answered that he had been to St. Peterburg and then to the USA. Luda was surprised. She said that some people were luckier that others. She asked if he had liked there. Dima confirmed that it had been wonderful. he explained that their groop had visited several big cities in the USA. Luda wanted to know which of them he had liked most. Dima answered that they had gone to New York, but the most interesting had been Washington, D.C. Luda was surprised. She said she had been sure that it had been not so important as New York. Dima explained that Washington, D.C. is very important, because it's the capital of the US government works there. Luda asked if he had gone to the place where the US government works. Dima clarified what she meant by the US Government. He told Luda that it's not as easy as she thought. He explained there are three branches in the US government. <...> Luda said all that was very interesting but she didn't understand what they did in Capitol and in the White House. Dima answered that in the Capitol they make laws and in the White House the President lives and works. Luda said she hoped she'd have a chance to go to the US some day, see the White House and walk about the Capitol." (I had to change the dialog into the indirect speech.)