Transaction not complete for two days now
1N9V3yNuBEbgS3g87qibrnTGARj9SrKFst did receive bitcoins. If they ask you to send again, don't, it might be a scam.

You can give them the transaction ids:

170e84bcc871f4cca8d352035c4bbe9e1a44bf2f66c8e9e4ff69547ea1256639
d1b5b5fddfde0aa492f8ef8a58f6740222ceed42d2ee369082ea4e95f7233415


even though they don't need them. You can just tell them "on block explorers it the transactions are shown as confirmed." with a kind "Can you confirm that the output address 1N9V3yNuBEbgS3g87qibrnTGARj9SrKFst shown on the block explorer was the one you had given to me?"