American Express Risk Analyst interview questions

Basic sql queries,2 puzzle questions, behavior questions, what do you know about amex, how does it generate its revenue ,how is your current job is relevant to this job, interviewer was vey supportive!!!

First round of interview was good. I cleared first round and got call for second round. But, unfortunately they cancelled before 15 mins and never rescheduled again. Despite of a lot of follow ups to HR and hiring manager, I did not get any reply. I heard from others that HRs are very lazy at AMEX.