Well nearly all of that sounds fairly irrelevant but the travel dates. If you didn't respond to the RFE in a timely manner you may be better off re-filing. Hire a lawyer this time.
My answering this question does not form an attorney-client relationship. Always retain a qualified attorney before taking any action. My office offers free consultations.
I would need to review the full denial as well as the applications and supporting evidence to answer your question. I typically advise clients to challenge denials based upon good moral character.I encourage you to contact an experienced immigration attorney for a thorough assessment.
This is why you consult with and hire an attorney the first time around. An attorney could have advised you of consequences of not filling out the application correctly.
Consult with an attorney asap and hire one this time around.
The above is NOT legal advice, and is NOT intended to be legal advice. No Attorney-Client relationship is created through the above answer.