Good restaurant + bar near the George R. Brown Convention Center

Hey yall. I need some help. So I need to find a restaurant or a cocktail bar near the George R. Brown Convention Center that can host 30-50 people in the evening (like 5pm to 10pm). It is not a party but a gathering of professionals. So it will be like a networking event. I have never been to Houston so could yall please recommend some options that fit the above criteria? Thank you!!!!