Carman: Book Car any time

Using Carman app, user can book the Car for local movement, short distances like near towns, railway station, airport etc. for both official and personal reason.
User can make new booking, cancel booking and view completed rides. User can also see the approx. reaching time of driver.
Driver receive the booking, start ride, end ride and view the completed rides. Driver will not receive the booking while he log out from app.
The booking will coming again when the driver log in into app.