Elisa: I'm going now to the city centre, anybody wants a lift?
Kate: if you wait 15 min, I'd go with you
Jennifer: Same!
Elisa: why 15 min?
Kate: I just washed my hair, don't want to get sick
Jennifer: I'm finishing something 
Elisa: gosh, I have to be at 3 at the central station
Kate: shouldn't be a problem if the traffic is fine
Jennifer: and it should be ok before 3
Elisa: but if not, I'll miss my train
Elisa: sorry, I am afraid I have to leave now
Elisa: I'm too stressed
Kate: Ok, I'm coming
Elisa's going to the central station. She has to be there at 3 pm if she doesn't want to miss her train. She'll give Kate a lift to the city centre.