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: [42, 39, 45, 31, 2, 28, 8, 12, 4, 48, 14, 11, 21, 29, 46, 49, 13, 22, 20, 38], target=42
Solution:
[28, 14]