Coffee shops are generally a great place to spend some quality alone times. However if you're lookung for a place to grab meal then you can check out - The Brew Room, Fig At Museo, Rustique (Adhchini) and Yeti (GK II). But, if you're looking for open spaces, you can check out Swarna Jayanti Park, Lodhi Garden and Humayun's Tomb, as these are some great places with serene surroundings.