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

[23, 37, 11, 40, 35, 30, 43, 15, 47, 10, 16, 41, 4, 32, 6, 38, 44, 26, 7, 49], target=66
[23, 43]