Another AppleScript question

Question

How would one make a password, let me explain more about this,
So pretty much I have it where you enter and set a password; it's all good.
So my question was how would I make it so it opens up a dialog after you set it telling you to enter the password you just set, if it's wrong it'll tell you to write it again, if it's right it'll open up whatever I put, here is my current code.
property firstRun : true
if firstRun then
    set pass to text returned of (display dialog "Choose your password." with title "Pass Select" default answer "" buttons {"Cancel", "Select"} default button 2 with hidden answer)
    set firstRun to false
end if
Thanks to everyone who replies to this and helps me.

Answer 1

Here:
property firstRun : true
property the_pass : ""
if firstRun then
set the_pass to text returned of (display dialog "Choose your password." with title "Pass Select" default answer "" buttons {"Cancel", "Select"} default button 2 with hidden answer)
set firstRun to false
else
set pass to text returned of (display dialog "Provide the password." with title "Pass Select" default answer "" buttons {"Cancel", "Select"} default button 2 with hidden answer)
repeat
if pass is the_pass then
exit repeat
else
set pass to text returned of (display dialog "Incorrect password." with title "Pass Select" default answer "" buttons {"Cancel", "Select"} default button 2 with hidden answer)
end if
end repeat
end if
(102371)