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

[16, 29, 33, 43, 35, 47, 21, 18, 37, 4, 28, 32, 11, 48, 20, 5, 9, 2, 13, 46], target=37
[16, 21]