add a try block

Because of different password policies it makes sense to pack this
function in a try block to let the user know if he's using
a password which doesn't work

scripts/users/reset-password.ps1

@@ -11,18 +11,27 @@ Catch
 
 function Reset-Password
 {
-    $username = Read-Host 'Please enter a user name'
-    $default_password = 'default-password'
-    Unlock-ADAccount -Identity $username
-    Set-ADAccountPassword -Identity $username -Reset -NewPassword (
-        ConvertTo-SecureString -AsPlainText $default_password -Force
-    )
-    Set-ADuser $username -ChangePasswordAtLogon $True
-    Write-Host
-    Write-Host 'Password of ' $username 'reset to ' $default_password `
-    -backgroundcolor green
-    Write-Host
-    Read-Host 'Press a key to continue'
+    Try
+    {
+        $username = Read-Host 'Please enter a user name'
+        $default_password = 'default-password'
+        Unlock-ADAccount -Identity $username
+        Set-ADAccountPassword -Identity $username -Reset -NewPassword (
+            ConvertTo-SecureString -AsPlainText $default_password -Force
+        )
+        Set-ADuser $username -ChangePasswordAtLogon $True
+        Write-Host
+        Write-Host 'Password of ' $username 'reset to ' $default_password `
+          -backgroundcolor green
+        Write-Host
+        Read-Host 'Press a key to continue'
+    }
+    Catch
+    {
+        Write-Warning $_
+        Read-Host 'Press a key to continue'
+        Break
+    }
 }
 
 Reset-Password