Luna lives in Houston, Texas, and wants to visit New Orleans during Mardi Gras. First, she asks her dad to buy her an expensive plane ticket so that she can visit a friend in Seattle, Washington, and he refuses. Luna then asks for the bus ticket to New Orleans and he agrees. Luna capitalized on:

the door-in-the-face technique.

Explanation:

The door-in-the-face technique refers to a submission method in response to a large request, which the person requested will refuse, so that he or she will be more likely to accept a smaller and more reasonable request. In that respect, Luna's father rejected her first large demand for an expensive flight ticket, and then submitted to his daughter's plea for a cheaper bus ticket.