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: [2,4,5,6,4,8,9,10], target=10
Example solution: [2,8]
Example explanation: 2 and 8 are present in the list and sum to 10 which was the target sum

Problem: [7, 23, 17, 43, 36, 24, 2, 4, 29, 37, 42, 3, 44, 5, 41, 26, 21, 10, 35, 6], target=91

Solution: []