Tim: Are you going to the dinner?
Jeff: Birgit's dinner?
Mira: I'm not invited
Tim: what?
Tim: that has to be a mistake
Mira: I'm not sure
Mira: we talked this morning and she didn't say anything
Tim: she told me on Monday that she invited you
Mira: no idea
Mira isn't going to the Birgit's dinner because she didn't get an invitation. Birgit told Tim on Monday that she had invited Mira. 