Booz Allen Hamilton Strategist interview questions

Three interviews including a panel interview with the team for the final round. All members were very friendly however were very dishonest. In the interview I was given what I would consider to be a verbal offer. The hiring manager asked if I would be available in the next two weeks to start, then, after I confirmed my availability I was told I would hear from HR about a formal offer in the next week. Instead I was told by HR that they did not have a project for me at this time with no way to circle back to the hiring manager or get feedback of any kind. Very off putting interview process.