Mary: Did you have a chance to talk to Juan?
Isabel: Yes, everything's fine
Sven: Do you know if he's going to wait for us?
Isabel: Yes but he'll be waiting at the bus station
Mary: Ok
Isabel: He's at work now but he will be there at 6.00
Sven: Mary what time are you arriving exactly?
Mary: 17:15 
Isabel: Ok I'll tell him we're not going to make it before 1815
Mary: Seriously? Why?
Isabel: The airport is huge, you'll see
Juan will be waiting at the bus station at 6.00. Mary is arriving 17:15. She and Isabel will meet Juan at 18.15.