Verb conjugation of "denote" in English

About the meeting dates: Can I propose something between August 24 and September 26 (in around 10 weeks)? Should I book 2 or 3 full days in the hotel. Gabriella will have enough experience by then.
My correction were added and highlighted with yellow markers and attached to this email. Tell me now if you have any questions about grammar rules, since I was a teacher 10 years ago.
There are great museums if you like art. The most important is the Van Gogh museum. There are good restaurants and bars in the center, it is very international. I hope we can stay in touch.