Returning to begining of a script

Dear all,

When i ask a question in my script if the answer is not correct i need to goback to the begning of the script and ask the question again.

ex - What is your name ?
saman
Name is not correct ...try again
What is the name ?
Nimal
Thank you.

Like this.

Thank you.

Naya.

Post your code here first.

This post looks very similiar to How to match month