Theme of a Dream

Where do these themes come from?

A bus goes to the airport every 30 minutes. Unreliably.  Sometimes it doesn't show up. There is only one evening flight to London from here (well, at least that's true), that is often booked up.  I'm waiting at the bus stop near a young Indian fellow.   We miss the streetcar (yes, a streetcar not a bus!) we were supposed to board, while I was explaining the situation to him. We walk to an office to buy airline tickets, but the flight may be overbooked anyway, and we won't know until we arrive at the airport terminal.  I'm going to visit a friend of a friend who just moved there (that's true, too).  But how is he going to host me if he himself is being hosted by friends of friends?  We walk back to the bus stop, when I remember that it'll be cool in London this time of year. I turn to go home to fetch my leather jacket.  Will I make it on time?