A couple minutes earlier: after getting the reply of down near the garden, Papyrus told the radio, "there you have it!" and released the talk button, opening the airwaves for Sans and anyone else to comment on the captives' supposed location.

And so, happily for their reputations, they're not being broadcast to everyone with one of the radios as half the people in the room start arguing. Less happily, going from the continued lack-of-response from the Ringmaster, she's not there.

"Well, I wanted to just call her... So she could let us know what to do next. And this isn't really an emergency..." Papyrus hems and haws for a minute, then offers, "but I could break one of those beacon eggs?"