According to NASA’s newly released statement, SpaceX is now targeting November 2017 and May 2018 for conducting unmanned test flight and a crewed flight of Crew
Dragon, respectively.

The first flight of Crew Dragon will be a test flight to the International Space Station (ISS) with a crew of three astronauts. The second flight will be a test flight to the ISS with a crew of two astronauts.

The first flight of Crew Dragon will be a test