Hi! Any recs for a NYC bar (around Chelsea - Midtown) for a 150 person cocktail reception? Looking for upscale, warm, and private - in house AV is a plus!

Hello, all. I’m taking about 25 female executives from Boston to NYC to meet their executive community counterparts for two days of fun and connections. These women know each other through an online community but may or may not have met in person yet. We have some receptions and meetups scheduled, but I am also interested in an intimate dinner location that I can work with to craft the ideal dining experience, with beautiful decor/an all-inclusive curated menu, in a unique setting. I would love two recommendations: 1. Favorite 4-5 star hotels in Flatiron District with a contact name 2. Restaurant recommendation for dinner for 30. This is not a sponsored event, so the ladies will all be paying on their own; as a member of the Community, I am looking to build in some structure! Welcome your expertise!