In the sentence mentioned, the subjunctive form is used since it is something that is desired and whose occurrence is not certain.
Subjunctive Tense.
The subjunctive tense in Spanish is used to mention wishes or requirements for the future, for which said actions are not sure to occur, then, in the given sentence in Spanish, in which it is mentioned that someone wants to be given the suitcase o bagpack, this is a requirement and therefore the subjunctive tense is used.
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