Hello
I am going from Spiez, Switzerland to Firenze, Italy on 12 April 2022.
I bought a Eurail pass.
I made a reservation for a seat from Paris to Interlaken, but I kept trying to go from Spiez to Firenze, but it didn't work.
I searched and found that the Trenitalia website does not accept seat reservations for Eurail Pass holders.
I'm trying to reserve a seat through Rail Planner, but it only shows up like this. can you help me?