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

Ex Input:
[19, 15, 45, 13, 36, 31, 34, 14, 8, 6, 35, 9, 38, 5, 18, 21, 3, 28, 4, 32], target=87

Ex Output:
[]

Ex Input:
[18, 11, 44, 20, 33, 38, 14, 21, 43, 9, 5, 42, 27, 29, 37, 25, 28, 3, 8, 49], target=48

Ex Output:
[43, 5]

Ex Input:
[25, 16, 9, 26, 12, 36, 17, 5, 34, 2, 48, 3, 46, 49, 20, 10, 38, 27, 45, 21], target=26

Ex Output:
[9, 17]