Proof of Hotel Bookings

I have booked a return flight to Shanghai in 10 days time for 4 nights as my partner will be flying there as part of his job at Air New Zealand Flight crew . I will be staying with him in the Hotel so i dont have a personal booking as this is all done through Air New Zealand . I can provide the roster showing the hotel we are staying at and his identity card .
Will this be sufficient proof of a hotel booking? kind regards Paul .