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

[44, 26, 23, 49, 1, 14, 45, 2, 27, 34, 20, 12, 16, 36, 3, 6, 21, 4, 35, 9], target=100

[]