Hello Dettu - I feel for you. This is not a healthy way to live.
May I suggest to fax the hotels you usually book at and ask them to insert a comment in your company profile - Hotels are very good at keeping guests and companies histories because it helps them better the service at the next visit - the comment could read: "Please call Dettu - by 2pm today to confirm if booking should be kept live or released" and give them a number you are always reachable at.  Thus you wont have to remind your boss that he needs to remind you that you need to remind him of a booking for Mr X booked at hotel Y...The hotel will do that for you.  In some hotels corporate bookers are rewarded with points they can eventually redeem against High Street vouchers.
Dittu, it's easy to turn it around to your advantage by letting the hotel do the work and pocketing a few bobs for your hard work - Happy shopping - Omar:)