Hi could someone help me write Phone book java program please. I am lost. Below is the assignment description. Please Include comments for better understanding.

This program focuses on implementing a single linked list. Turn in at least 2 files (classes). The first will be your phonebook node class. The second will be a phoneBookManager class. You are welcome to add additional classes as you see fit.

The phone book node should contain at least name, address, city, and phone number fields in the phonebook node.

The phonebook manager will allow you to either add an entry (name, address, city, phone #) to the end and then sort it, or alphabetically by last name. You can also modify the entry, delete entries, or move them from the Bellingham to the Seattle phone book (optional). Finally, you should be able to print out your list in a nice format.