Excel 2007 : Lookup Phone numbers

Hi guys, my first post on this website.
I need help making a list. My dad told me make a phone list, that when the person starts entering the name, the persons name comes up automatically. Like if I want to write
John Smith, and if Type Joh, the entire name John Smith comes up and I have to press enter for it to be accepted.
Also, I want to make it so that once the name is entered their phone number also gets written in the next column.
I'm sorry, I'm new to this so please make it as easy as possible.
If you have any questions just ask me!
Thanks!