Many thanks to Ayako for tweeting the link.
Actress, Christine Hollingsworth, was in the bar scene with Keanu on Friday. She shared the photo that she took with him on the set on websta. Ms. Hollingsworth has been in a short, The Ticket, and the TV series, Gotham. Her IMDb page is here.
Update: From comments on her FB page, she auditioned for the part and it is a small role.