Enter data for filtering

Thank you in advance for any help.

Question:
I would like to enter a lot of data into excel like this

A1: Name       B1: Last Name
A2: Address    B2: 2nd Address
A3: Phone #   B3: E-Mail
A4:
A5: Name       B5: Last Name
A6: Address    B6: 2nd Address
A7: Phone #   B7: E-Mail

How can I filter after I input all the data so the names will alphabeticalize and will keep the appropriate address and phone # and email, etc ?