On error re-open last dialog - applescript

Question

I have a dialog which opens to input and store user input(name).
Upon error (which is is either due to no name entered or the name already exists) i want the dialog to re-open. Finally, if the second attempt fails again, open a dialog which states that and exit.
The problem is, whether the name exists or does not, all 3 dialogs are ALWAYS displayed.
What am i missing?
try
display dialog "Specify a new folder name:" default answer "John The Dog"
set newName to (text returned of result)
on error errorMessage number errorNumber
end try
try
display dialog "Specify a DIFFERENT folder name:" default answer "John The Dog12"
set newName to (text returned of result)
on error errorMessage number errorNumber
end try
try
display dialog "NAME ALREADY EXISTS! The program will now exit." with icon caution buttons {"EXIT"}
end try
Thanks!

Answer 1

Try this. Note I did not test this but it should work. Just put this code in place of your code where you try to get the folder name.
You can basically create as many dialogTexts/defaultAnswers combinations as you want and it will work. Good luck.
-- get the names of all the folders in the targetFolder
tell application "Finder" to set targetFolderNames to name of folders of folder targetFolder
set dialogTexts to {"Specify a new folder name:", "Specify a DIFFERENT folder name:"}
set defaultAnswers to {"John The Dog", "John The Dog12"}
repeat with i from 1 to count of dialogTexts
display dialog item i of dialogTexts default answer item i of defaultAnswers
set newName to (text returned of result)
if newName is not "" and newName is not in targetFolderNames then exit repeat
if i is (count of dialogTexts) then
display dialog "NAME ALREADY EXISTS! The program will now exit." with icon caution buttons {"EXIT"} default button 1
return input
end if
end repeat
-- do something with newName