I am from New York City, the most populous city in the US.  Have you been recently?
I have never been to New York, I would love to go. Do you like it there?
I love it - with a population of just over 8 million people, it's become a multi-cultural city and the most densely populated as well.  You can see anything and everything in NYC.
Like what? Are there lots of tourist attractions?
Definitely - as a global power city, NYC has been described as the financial, cultural and sports entertainment of the world.  There is the Wall Street, which is the worlds largest trading stock exchange floor.  They also have the Yankees, one of the most popular baseball franchises in the world.
There are a lot of people living there, is it possible to escape from all that noise and bustle?
Of course - usually all the tourist attractions is located in Manhattan, which is one of the five boroughs in NYC.  The other 4 boroughs are way less populated and resemble more of a quiet life. 
That's good! I don't like too many people. Is it good to visit all your around?
physically connected to the Bronx and separated from the rest of Manhattan by the Harlem River. Manhattan Island is divided into three informally bounded components, each aligned with the borough's long axis: Lower, Midtown, and Upper Manhattan.
Manhattan has been described as the cultural, financial, media, and entertainment capital of the world, and the borough hosts the United Nations Headquarters. Anchored by Wall Street in the Financial District of Lower Manhattan, New York City has been called both the most economically powerful city and the leading
undetected for 36 minutes on a course heading due east toward Washington, D.C.
8:58: Flight 175 takes a heading toward New York City.
8:59: Flight 175 passenger Brian Sweeney leaves a message via airphone to his wife Julie: 
Jules, this is Brian listen, I'm on an airplane that's been hijacked. If things don't go well, and it's not looking good, I just want you to know I absolutely love you, I want you to do good, go have good times,