Turning down a request for support politely

Today: turning down a request for support politely. Wang Chihsun, from Taiwan, works as a pastry chef at an upscale American restaurant in Tokyo. He moved to Japan in 2015. Fascinated with Japanese sweets, he began studying to be a pastry chef. His dream is to one day open his own café in Taiwan. At his current job, he wants to learn how to communicate better with coworkers. To help, he'll take on a roleplay challenge where he must turn down a busy coworker's request for support.