Adapt the code for question 1 to ask for the users surname and then output:
Hello [firstname] [lastname]

Hello , Jimmy Donaldson

Explanation:

a) click on any cells in the range of data

b) click the data

c) click sort& filter group, click sort

d) select the column to sort by and then select a sort order

e) select the next column to sort by and select the sort order

f) click ok