Given the task definition and input, reply with output. 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

[]