Miles: Hey, guys, I'm so sorry, but I missed the bus, so I'll be about 15 minutes late.
Fiona: No probs. 
Brett: Yeah, easy, there are some people who are gonna be 30 minutes late so no pressure.
Miles: Thanks :)
Miles has missed the bus, so he may be 15 minutes late. Brett assures Miles he should not worry, as other people will be even 30 minutes late.