If you receive a phone call from someone claiming to be from the JW Marriott or a travel agency asking to book a room through them, do not provide any information. The scam is to acquire your credit card information. They do this by requesting your email address in order to provide a link for you to fill out information to book your room. This is a fraudulent call and you should not provide them with any information. The JW Marriott does not contact guests in this manner. Only use the link on the conference page to reserve your room.