def add_passenger_to_sector(sector_id, service_no, last_name=None, init=None, fare=None):
s = Sector.get_by_id(sector_id)
p = Passenger.get_by_key_name(service_no)
if not p and last_name and init:
p = Passenger(service_no=service_no, key_name=service_no, last_name=last_name, init=init)
p.put()
if p and s:
psb = PassengerSectorBooking(passenger=p, sector=s, booking=s.booking, fare_type=fare, key_name=str(p.key())+str(s.key()))
psb.put()
_use(s.booking.key())
_use(p.key())
res = p.to_dict()
res['fare'] = fare
return res
return None
