}
public void validateEnterBookingDetails(ValidationContext context) {
MessageContext messages = context.getMessageContext();
if (checkinDate.before(today())) {
messages.addMessage(new MessageBuilder().error().source("checkinDate").code(
"booking.checkinDate.beforeToday").build());
} else if (checkoutDate.before(checkinDate)) {
messages.addMessage(new MessageBuilder().error().source("checkoutDate").code(
"booking.checkoutDate.beforeCheckinDate").build());
}