Kerry: i'm going for a walk. Wanna join?
Berenice: No, thank you. 
Berenice: I'm tired and have to get up early tmr. 
Kerry: Okey, no problem. 
Kerry: It was a lovely walk. 
Berenice: Glad to hear it :)
Kerry: U r still up? Why?
Berenice: Can't sleep. 
Berenice: Should have gone with u!
Kerry: Next time.
Berenice: Deal.
Berenice didn't go for a walk with Kerry and now she regrets it as she cannot fall asleep. 