This is a Python script which is on developing a personal assistant called 'Alexa' that helps users to get assisted by it. With Alexa, you can build natural voice experiences that offer customers a more intuitive way to interact with the technology they use every day. The aim is to build our own assistant than depending on other things.

1. Speech Recognition - Library for performing speech recognition, with support for several engines and APIs, online and offline.
2. pyttsx3 - pyttsx3 is a text-to-speech conversion library in Python.
3. pywhatkit - it is one of the most popular library for WhatsApp and YouTube automation.
4. datetime - datetime in Python is the combination between dates and times.
5. wikipedia - Wikipedia is a Python library that makes it easy to access and parse data from Wikipedia.
6. pyjoeks - One line jokes for programmers (jokes as a service)