Course: Intro to Economics - Basic Concepts

Daniela and Daniel have bought two tickets to go to the cinema to see the movie "Soy madre" (I am a mother). In the first 10 minutes of the movie, Daniela realizes that it is of lousy quality and decides to go home. Daniel, on the other hand, thinks that Daniela is irrational because she is losing the ticket costs. Are Daniel and Daniela rational? Justify your answer using economic concepts.