No Original I 797 and 129


I have scheduled Interview next week with Family.

My Employer send only the copy 797 B & C. I have no Original I 129 or 797. Is this OK to go with this ? Can you please suggest.

Is I 129 and 797 are same or we have to carry both ?

Thanks in Advance

It is better to get original 797 and I-129 copy for the interview.