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

Example Input: [34, 24, 1, 33, 20, 13, 21, 23, 11, 6, 26, 31, 38, 35, 40, 2, 4, 3, 27, 25], target=68
Example Output: [33, 35]

Example Input: [42, 29, 12, 38, 31, 17, 15, 1, 14, 23, 8, 5, 20, 34, 21, 47, 4, 49, 24, 19], target=30
Example Output: [29, 1]

Example Input: [12, 42, 19, 39, 30, 16, 48, 7, 4, 47, 43, 18, 6, 11, 21, 20, 32, 22, 25, 5], target=39
Example Output:
[18, 21]