User input readline || readf

[kerze via Digitalmars-d-learn]

Hy, i'm new @ D and i come from python.
Sorry for my engish, i understand good, but i write like a cow 
spanish.

I make a little programm to add human's name and age and a 
function to write out alls humans in the list.

Here is the source:

http://dpaste.dzfl.pl/0a0da462225d

The problem is, it writes instant "Name: Age:" at the standart 
output.

I'm little confuse about readf and readline, what to use. or its 
the failure in write ?

I hope anybody can help me, as long as anybody understand me and 
my problem. ;)

Greetings from Swiss.

Kerze