Rachel's Design in Last Window: Secret of Cape West.
Rachel is a recurring character in the Kyle Hyde saga. She works at Red Crown as Ed Vincent's secretary and guides Kyle Hyde via telephone throughout the two games, offering important information about people involved in his investigations, as well as researching other things that may help Kyle. She is able to signal Kyle through his pager to phone her.
It is heavily implied through the way she speaks to Kyle that she has feelings for him, as she is very affectionate to him.