Merge Statement in SQL Server

Hi,
I'm trying to do Merge with in same Table
My Condidtion is
1.First name, last name, Dob is same and City is different we have to update SRC1's City
2.First name, last name, Dob is same and Phonenumber is different we have to update SRC2's Phone number
My Table structure
CLUSTER_ID   SCORE ...