The context of the following conversation is Tracy had to leave the party earlier because their children were with a babysitter who had to go home at 9 PM .:
Tracy says Hey can you tell me what time it is? My phone died.
The friend responds Yeah its just about eight thirty.
Tracy responds Oh no its that late, I have to leave now.
The friend responds The party is just getting started.
Tracy responds I know but our sitter could only stay til nine.
The friend responds Oh bummer, sorry you have to leave.