Sep 01, 2015 - 10:25 AM
The tickets from Belluno to Conegliano and from Florence to Siena are regional tickets and are valid for 2 months
so you can use those in October. The ticket from Conegliano to Florence is on a high speed train. You purchased
a sale fare and per TrenItalia's fare rules there are no changes allowed. You will need to purchase a new ticket
for the later date.