MY MICROPHONE IS OK BUT SIRI IS NOT SETTING UP

I AM USING IPHONE 8 PLUS I WAS USING IT AND IT IS WORKING OKAY. MY MICROPHONE WAS ALSO WORKING OKAY BUT WHEN I START TO SETUP SIRI IT ACTS LIKE I HAVE ANY ISSUE WITH MY MICROPHONE IT WAS UNABLE TO SETUP I HAVE ALREADY USED MANY TRICKS TO TROUBLESHOOT IT BUT UNABLE TO SETUP SIRI IF ANYONE KNOWS THE SOLUTION KINDLY TELL ME.