Yes, the ticket and seat reservation are correct.
The seat is marked as reserved. For unreserved seats, it’s free seating. Should your seat be occupied though, you may ask the person to change to another seat. Or, you contact the train staff to get it sorted out for you.
A seat reservation is, as I said in the other post, not mandatory. It is a regular train that is also used by locals and commuters.
Enjoy the ride, sitting on the right hand side in direction of travel is providing better views.