Hi all the experts here, if I have decided to take the job offer from company A and I have another interview with company B, is it possible if I reject the interview invitation from company B? This is because I am worry that company B will put no show statustag on my jobstreet acc.

I strongly agree on this especially when you face a female interviewer, they will know.
The best thing is be yourself, answers everything on yourself, and sure you will be passed.