The following is a dialogue between two friends, Claire and Kathy. Please extract the dialogue and format it as a JSON object. Each key in the JSON object should be the speaker's name, and the value should be a string containing their dialogue.

Claire: Hi, Kathy. Are you going to Lisa's birthday party this evening?

Kathy: Yes, I am. I can't wait! I'm going to wear my new red dress and sandals.

Claire: Really? Isn't the weather a bit chilly for a light dress? And look at those big black clouds. It's definitely going to rain later, too!

Kathy: So, what are you wearing to the party, then?

Claire: I'm going to go in a cosy sweater and trousers. I know it's not fancy, but at least I'm going to be warm.

Kathy: Hmm ... perhaps you're right. But I really want to wear my new dress. I know - I'll bring a jacket so I'm not cold.

Claire: Whatever you think! By the way, what present did you buy for Lisa? I got her a yellow top. I hope she'll like it.

Kathy: I'm going downtown to buy her something now. Actually, I have to hurry! The shops close in an hour.

Claire: Oh, can I use your telephone before you go? I want to call my mum, but my phone is out of batteries.

Kathy: Yes, that's fine. Here it is.