I might not be the best one to answer this, I had challenges training my puppy, but mostly because I wasn't consistent! Consistency is the key!! So, if she is crate trained...you take her out, put her on the pad, give the command and wait. If she doesn't go, then she goes back into the crate for 10-20 mins...you take her out and try again. After she finally goes (and I would assume she would eventually), you reward with a treat and some play time. But consistency is always the key...she will never go into the kitchen to "go" by herself at first,because she is never going to be left outside her crate unless you are watching her...and every time it looks like she wants to go, you will go with her...then you can praise and reward her good behaviour. You can't get angry when she misses...because she only missed because YOU were not watching her...Get it?
That's the theory...and in theory what I did...but my DD and I were not consistent and it took over a year...my own fault (which I accepted and never took out on the puppy)
Good luck!