Our flight from US to Frankfurt is supposed to arrive at 6:15 am - if I buy train tickets for the 7:35 departure to Bolzano - and our flight is delayed - would our tickets be transferable to the next train? There are 7 of us traveling together so I would like to reserve seats.
Or vice versa - if I purchase the later train tickets (9:35) and we arrive on time and would be able to take earlier train - would they allow that?