Definition: You are given a list of integers and an integer target, return a list of a pair of numbers in any order such that they add up to target. If there is no such pair of numbers, then return an empty list
Input: [25, 32, 28, 15, 31, 43, 4, 11, 42, 13, 33, 27, 45, 23, 6, 41, 16, 48, 38, 5], target=38

[23, 15]