Scammer was able to call me by my name and claimed to be my friend

I received a call from 89276759 and caller kept insisting that I knew him when I couldn't even recognise his voice. He claimed to be my friend and called me by my name. I still couldn't remember. In the end, he said he was "Kelvin", which happened to really be one of my friends' name. 

Then, he claimed that his wallet & hp has been stolen and this is his new hp number.
today, he called again. he said he is facing some problem on transfering funds to his supplier and ask for my help to borrow him some money and he will return me the money by today before 4.30pm. I felt weird because my friends whose called "kelvin" all are my working partners and our relationship wouldn't be so close for me to lend him money.

I refused him and asked him should looking for help from his supplier or the company instead of me.