Using R script

Write a program implement a simple Phone Book

The goal is to create an end-user application that users can use to manage friends data and contact information

You are the developer of the application, not the user

There are many friends:

Sometimes you make new friends

Sometimes you unfriend someone

For each friend we want to remember

Last name

First name

Phone number

Implement the following functionality:

Print a friends info

Print the whole telephone book

Insert a friends info

Delete a friends info

Look-up a friends info

Use only vectors and simple data types (e.g. text, numeric)