Demi Chef de Partie - Flexible Hours Service periods: The restaurant is primarily open for lunch and dinner from Monday to Friday. NYnLON is part of Hyatt Regency London Blackfriars. Demi Chef de Partie at NYnLON you will enjoy all the benefits Hyatt has to offer: Discounted hotel stays across Hyatt not just for you but also your family and friends from the day you start Free meals on duty 50% discount