Problem
Design a marketing message that embeds the concept of nostalgia and another factor that can potentially moderate the effect of nostalgia to increase consumer desire for post-pandemic travel. Your idea should be ORIGINAL. Specifically, please address the following aspects:
1.	What can be the second factor (moderator) that you think can moderate the effect of a nostalgic marketing message? Briefly justify why.
2.	How to manipulate the two independent variables?
3.	How to measure the dependent variable?
4.	Briefly write the procedure of the study.