Seat Reservation not possible...?

[Ken63]

While trying to reserve seats, the train I want says 'not possible' even though train is marked as 'R'. Does that mean all seats are taken and we must select a different train?

[GiuseppeL]

Good morning @Ken63 , thank you for your request. If the display is not possible, it means that the train is fully booked. In this case, another connection must be selected. Have a nice day . Kind regards GiuseppeL