Wojtek: I will be at the campus on Saturday, would you like to grab a coffee about 3pm :)?
Paulina: hey! That's awesome!
Paulina: are you back only on Saturday?
Wojtek: Ah shit, I meant Monday, sorry xD
Paulina: sure, let's do it Monday
Paulina: around what time you will be around? 
Wojtek: cool! Before 3pm, then at 6 I have dinner with my adviser. That's my Monday plan:)
Paulina: we are set then, see you soon :3
Wojtek and Paulina will go for a coffee on Monday.