Creating two files if it changes seconds SSIS

Hi All,

I have a small issue. I was pulling data from two tables and putting them in single text files.

I have written same expression on two connection strings like to display data,month,year,hr,sec as extension name for text file.

so it is creating one file and pulling data from two tables putting in that single text file.

So far it is perfect what I noticed after some time is when the seconds changing .... like if the first data flow finishes at 29 seconds 

and second data flow task finishes at 30 seconds then it is creating two files.

if both data flow finished in same second then it is creating only one file. 

So where I need to control that timing issue I don't want to create two files if both finishes in different seconds. I need single file.

Could anyone help me please

Thanks,

BB