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
Q: [26, 31, 10, 36, 29, 17, 23, 30, 20, 40, 5, 32, 44, 1, 43, 19, 28, 9, 7, 38], target=38
A: 
[10, 28]