I am very interested in learning about the History of Washington, D.C. What do you know? 
 Washington D.C is the capital of the United States, it's neither a state nor a city, it is a territory! 
 I'm sure it has a lot of rich history. Can you tell me some things about it? 
 In Article One, Section Eight of the Constitution it permitted the establishment of a District to become the seat of the government of the United States. 
 Was DC always the capital? 
 No, because the Constitution doesn't specify a location for the capital. 
 Do you know anything else about the History? 
 It is named Washington D.C. after the president George Washington. 
 Nice. Do you know anything about the Infrastructure there? 
 The metro in Washington opened on March 27, 1976, and consists of 91 stations and 117 miles of track. 
 Is that the main way people move around the city? 
 I'm not sure but the metro line connects Washington to Dulles airport. 
 That's very handy. What else do you know about the Infrastructure? 
 Much of the major international flights arrive and depart from Washington Dulles International Airport! 
 You've been very helpful. Thank you. 
 You're welcome!
Washington, D.C.