They keep calling. Its a computer calling and the first question this computer program asks is "can you hear me OK?" That question is intended to calibrate your voice. I always put the call on mute.
"Cruise offer" is probably some sort of time share or vacation club. You can spend thousands on these and then beg people to take it for free. That is because the annual fees are so high, and it is a perpetual obligation. The only way to get rid of it is to beg people on time share selling websites to take it for free, or even to pay them to take it.