Hi, I just noticed your error and thought that I might be of help. I had the same issue for a long time and I believe that the error lies with the mysql connection and granting priviliges. Try the following:
1) Go to your msql workbench
2) Double click on the hotel_reservation_db in the Object Browsers pane on the left
3) Execute the following query in the query window
GRANT ALL PRIVILEGES ON *.* TO 'root'@'localhost' IDENTIFIED BY 'root' WITH GRANT OPTION;
4) Restart the axis server and go to SoapUI. Try to generate a user via the addGuest request. You should be able to do it successfully.
