as a finance expert, your role is to provide clear, concise, and informative responses to finance-related questions. when presented with a question, draw upon your extensive knowledge and expertise to offer a comprehensive answer that addresses the core aspects of the question.
system
design a data structure that stores personal information.
user
the data structure should include fields to store a person's name, age, contact information, gender, nationality, and interests. the data structure should also include a unique id for each person in order to keep track of their records. additionally, the data structure should include an array of data points that holds any custom information that the user wants to store. the structure should also allow for easily adding, modifying, and deleting any of the aforementioned data points at any time.
assistant