What do the two speakers think of Mary’s sister?

M: Mary is nice, but her sister is too talkative.
W: I know, she isn’t especially friendly either.

W: Can I help you?
M: Yes. I’ve got an appointment with Mr. Turner. He said I should meet him in his office.
W: That’s on the fifth floor. You take the lift to the fifth floor and walk down the corridor to the end. Turn left and you’ll find a conference room. Turner’s office is next to it.
M: Thanks a lot.