H1 visa holder switching the company after Visa Appointment booked for family in Indi

[visahelpd1111]

My H1B is transferred from company A to Company B. I have joined the new Company B.
My family is in India for Vacation. They have a scheduled appointment for visa stamping in Sep 2016 with old I-797 approval (Company A petition). I heard that we can resubmit new DS-160 from with new Company B petition, and we can go for the same visa appointment. Is it ok? Did anyone experience this kind of situation? Please suggest?

Thank you,
VR