
I am planning to visit Austria, Germany, the Czech Republic, and Hungary in September with a 7-day Eurail Pass. When I tried to book a seat reservation for the train from Prague to Budapest, the website displayed the message:
"Not available from Interrail.eu. This seat reservation can't be booked on our website.
Check 'More information' for other ways to book."
Could you please advise me on how I can make this seat reservation?
