Accepted for Boarding tried to communicate ahead of time for messages no response

I figured I’d check in early with owner for their small poodle that is supposed to boarding with me. Sent a message over a month ago, no response. Okay, no big deal, tried a couple of weeks ago still nothing. Pet is supposed to check in tomorrow before 6am-9am and sent two messages tonight. I’m literally about to cancel. I’m getting bad vibes. I don’t want to get dumped with a dog that I cannot take long term.