talk about plans and arrangements

Cèlia: Marina..Marina?
Marina: Yes? oh, hi Cèlia!
Cèlia: Are you doing anything this evening?
Marina:No, nothing special. Why?
Cèlia: I'm going to go to the cinema on Saturday..are you interested?
Marina: Yes, great. What time does it ?
Cèlia: In five o'clock.
Marina: Can I help you?
Cèlia: Yes, of course!
Marina: OK. See you later.
Cèlia: Bye, bye:)