Going to San Francisco with a friend in early Sept for a week. We will be staying in the Union Square area. We are 2 women in our early 30s. Looking to get some recommendations on where to go out to eat (lunch, dinner, brunch). We are looking for a mix of places, price-wise and we have no restrictions on what type of cuisine the restaurant serves. Willing to try various neighborhoods... A few cocktail bar recommendations would also be appreciated. Got a guidebook but it is always better to get some local advice. Thanks!