You will be given a definition of a task first, then some input of the task.
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

[15, 7, 36, 31, 5, 8, 21, 34, 23, 41, 30, 28, 49, 18, 40, 16, 24, 48, 19, 6], target=70
Output:
[36, 34]