Methods, computer program products, and systems are presented. The methods include, for instance: obtaining a travel plan of a user including one or more travel item. Success values of respective travel items are calculated based on respective preferences by the user for each travel item in respective SV categories. Real time data relevant to the travel items are acquired and success values are updated for any predicted changes to any travel items, as caused by the real time data. The changes and updated SV is produced to the user.