That sucks man.
For talking to the prom date, try talking about generic stuff... even if you don't have anything in common. Talk about news events or just "chat", like if you see something that reminds you of a story that happened in the past with you, tell her the story and she'll probably respond and keep talking, maybe even telling one of her own.
That hardwood floors thing sucks though man. We just had hardwoods installed in a new room we built onto our house.... didn't look very fun.