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
create a data structure to store messages
user
a data structure that could be used to store messages would be a doubly linked list. this data structure provides a way to store messages in a reverse chronological order, allowing for retrieval of the most recent messages. additionally, a doubly linked list provides an efficient means to add and delete messages, as well as efficient searching capabilities.
assistant