Mark: I've got a weekend off
Mark: A miracle! ;)
Julie: :)
Mark: Let's go to the botanics if the weather is okay
Jo: Good idea!
Jo: There is a nice path from your place
Jo: 25 mins walk
Julie: The one with the colourful playground?
Jo: Yeah
Mark: Saturday afternoon? 
Julie: works for me
Julie: Jo?
Jo: I'm not 100% at the moment 
Jo: Will give you a call later
Mark has a weekend off so wants to go to the botanics. Mark and Julie agree on Saturday afternoon. Jo isn't sure at the moment and will give Julie a call later.