How do I combat the Dinosaur arguement?

I was having a discussion recently with my sister, who I am working on being saved and having a relationship with God, and she asked about dinosaurs. She brought up the question that how could the bible, from 2000ish years ago, be accurate if scientists have found dinosaur bones they date back millions of years ago.

What’s the answer here? I’ve been a Christian for a long time, but am still learning and I haven’t come across this point before. I know there are plenty of other historical points she could make, so how do I respond to those too? There’s obviously a plethora of resources she can find “true” historical evidence dating back further than the timeline of the Bible, so I want to be prepared for those conversations.

EDIT: I’m learning that I misunderstood Genesis. I was under the impression that when the earth was created in Genesis, that wasn’t very (relatively) close in time to the events of Jesus.

UPDATE: Too many of you have given helpful comments for me to respond to everyone, but thank you all.