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

[22, 21, 11, 10, 9, 29, 8, 45, 36, 18, 4, 3, 26, 16, 30, 34, 44, 12, 15, 39], target=24
[21, 3]