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

[7, 23, 17, 43, 36, 24, 2, 4, 29, 37, 42, 3, 44, 5, 41, 26, 21, 10, 35, 6], target=91
[]

[11, 14, 8, 40, 31, 17, 19, 26, 49, 34, 27, 15, 4, 7, 41, 38, 30, 42, 36, 23], target=96
[]

[17, 49, 23, 36, 29, 6, 13, 45, 5, 28, 24, 35, 44, 21, 37, 10, 2, 40, 43, 3], target=88

[45, 43]