Here we go again

Mom: Hi.
A.: Hi. My flight has been delayed-- I won't be getting in until 10:15.
Mom: Hahaha! I didn't even know you were getting in tonight!
Mom, dad: [Laughing]
A.: I sent you my itinerary.
Mom: Yeah, I saw it. Dad saw it. Then we went to look at it but didn't find it again. What time did you say you were getting in?
A.: The current estimate is 10:15pm.
Mom: That's so funny. Well, I guess I'd better clean the guestroom a little bit.
A.: Sounds good.