Week number with If else

I am new to create calculated fields with the Quicksight. I have some dataset with the resolved tickets information which needs to be shown with the tag and with the week of the year. Is it possible to show through table ?

Example ) I have 10,000 resolved tickets for each week which needs to show through week numbers only and with the selected tag with the ticket. I have access to the dataset but unable show the same through Week numbers