I have Nikon D5300 camera with two lenses ( 18-55mm f/3.5-5.6G & 55-200mm f/4-5.6G), please let me know if my camera and lenses work for Couple and Event Photography? if not , what Camera and Lens do you recommend ?
Yes. Those work fine. However, they probably aren't sufficient. It is likely you will need more than that — you'll need lighting, and more than that, you will need some skill with the subject, and, frankly, one way you will know if you are ready for that is when you stop worrying about whether your camera and lens are good enough for it.