I add the list provided by K.Bryony into the bottom of the table. I think you could use
• 17-19 persons for Mon whole day, Tue whole day
• 24 persons for Wed morning
• 20 persons for Wed afternoon, Thu whole day and Fri morning
Pls note that there is only 1 meeting room on Wed, not 2 meeting rooms. All participants will be in the same room on Wed morning. This is different from what hotel summarized you as they still think we need 2 meeting rooms on Wed morning.
Moreover, no need of dinner at the hotel.
Last, I understand we don’t have any guarantee we have to pay to hotel. For example, if number of rooms on 11 is 17 rooms now, and suddenly some persons could not come, we should not agree to pay upto 17 rooms. Please help also revert whether we have faced this issue.