Is anhedonia and depression the same disease?

Anhedonia is a reduced ability or inability to feel pleasure, satisfaction and joy. Anhedonia is a common symptom of depression - patients often describe this condition with the words "nothing pleases me". This phenomenon can be said when the lack of emotions, interest appears in response to a stimulus that in the past was perceived as pleasant, triggering happiness. As I understand your question, if a person is not happy about the trip, it can be said that it is anhedonia. Of course, this depends and should be analyzed by a psychiatrist or psychologist. For example, if for a given person in the past travel was a source of pleasure, he was looking forward to every trip, planned further escapades, was excited about the possibility of "getting out of the house", and now the trip is treated indifferently, then this may suggest anhedonia in the course of depression. If, on the other hand, this person generally does not like to travel and is a type of householder, then indifference to the prospect of departure may not mean anything. At the same time, the lack of emotions in connection with the trip may also have other reasons - perhaps it is simply not attractive to this person for some reason? I enclose additional information: https://www.gdziepolek.pl/artykuly/depresja