Teacher:Given a travel related situation, and given a specific question about the situation, summarize the question into a title
Teacher: Now, understand the problem? Solve this instance: I am planning to book a direct sleeper train from Innsbruck to Prague through Ceske Drahy/Czech Railways. The train page says:

Depart from Innsbruck Hbf
(Train name: EN 467 EN Night Jet /EN 463/S 1540) to Praha hl.

Why are there so many names of this train or am I wrong to assume that this is a direct train? The train name changes from Salzburg Hbf (dep. 3:50) to train no. EN 463 and from station Linz Hbf (dep. 6:35) to Train S 1540.

Does this mean I would be required to change trains at Salzburg and at Linz?

Student:
Is the Innsbruck to Prague sleeper train really direct?