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

[31, 24, 30, 42, 33, 26, 47, 29, 7, 16, 3, 39, 10, 6, 15, 49, 12, 19, 2, 18], target=59
[33, 26]