Why did Alice call her father?

M: Hello.
W: Hello, Dad?
M: Yes... Alice! How are you? Is there anything wrong?
W: Oh, no. l just wanted to call and see how you and Mom were. It’s been quite a while since I saw you last time.
M: Oh, we’re both fine. Your mother is down at the new shopping center. How’s Jack?
W: He’s fine. He likes his work and was given a raise last month by Mr. Davis. We were all pleased about that.
M: Yes, I think you should be. And how are the children?
W: Well, Billy’s home from school today. It’s nothing serious, just a bad cold. And it’s his birthday, too!
M: Oh, I thought his birthday was May 24th.
W: No, the twenty-third.
M: Well, that’s too bad. Tell him we’ll send him a present.
W: All fight. Sally’s still taking dancing lessons.
M: She must be pretty good by now. I’d like to see her sometime. And how is Ted?
W: He’s OK, too. He has a part-time job at the garage now.
M: When are you coming for a visit?
W: I hope we can come for a few weeks this summer, probably in July.
M: That would be nice. Call again soon.
W: OK, Dad. Give Mom our love.
M: All right. Goodbye.
W: Goodbye, Dad.