@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((aircraft == null) ? 0 : aircraft.hashCode());
result = prime * result + ((bookingId == null) ? 0 : bookingId.hashCode());
result = prime * result + ((end == null) ? 0 : end.hashCode());
result = prime * result + ((pilot == null) ? 0 : pilot.hashCode());
result = prime * result + ((start == null) ? 0 : start.hashCode());
return result;
}
