Detailed Instructions: 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
See one example below:
Problem: [2,4,5,6,4,8,9,10], target=10
Solution: [2,8]
Explanation: 2 and 8 are present in the list and sum to 10 which was the target sum

Problem: [12, 21, 30, 29, 45, 15, 36, 16, 13, 39, 37, 6, 31, 24, 17, 14, 33, 27, 8, 4], target=34
Solution:
[21, 13]