Cherrie Ying seems to be in the elevator. She is a female nurse. It just seems that Jackie Chan didn't rob it at that time, but the son of the bad guy played by Chen in the film. Jackie Chan stole at first, but only saved the baby when he was about to fall.

Gao Yuanyuan played a nurse, and later Jackie Chan and Louis Koo met when they went to a parenting class. ...

And it seems that Cherrie Ying likes Jackie Chan, and Jackie Chan likes the one played by Gao Yuanyuan. ...