Problem in Execution of flat file to database table in SSIS

I have aflat file having column ID, Name, Address with some record, and i have a table in my Database with column ID int,Name varchar,Address varchar

ID, Name, Address
1, samy,GGN
2,ruby,GN
A,mac,ggn
4,john,dli

when data is processed from flat file to database it insert upto 2 records  and package does not execute succesfully that's fine 
but when flat file having data like

ID, Name, Address
1, samy,GGN
2,ruby,GN
3,mac,ggn
A,john,dli

when data is processed from flat file to database it insert upto 3 records  and package  execute succesfully and there is no error.
any one please explain this?