James could consider implementing a few solutions to address these issues. Firstly, he could streamline the check$-$in process by digitizing the paperwork. This would not only speed up the process but also reduce errors.

Secondly, he could implement a system where the reservations staff are required to submit the day's reservations to the front desk in a timely manner. This could be enforced through a digital system that automatically updates the front desk with reservation details.

Thirdly, to address the issue of communication with the housekeeping staff, James could consider providing language training to improve communication. Alternatively, he could implement a digital system that clearly indicates the status of each room, reducing the chance of misunderstandings.

Lastly, to ensure guests are not checked into unclean rooms, a system could be put in place where rooms are only marked as available once they have been cleaned and inspected.

These solutions would require investment in digital systems and possibly training, but they could greatly improve the efficiency and customer satisfaction at the hotel.