I don't have a complete interpretation but there are multiple references to Dante's Divine Comedy.

"I heard that you missed your connecting flight"

Dante starts the divine comedy lost in a dark wood.

"In the quivering forest,
Where the shivering dog rests"

This is a reference to the layer of hell where the suicides dwell.

"And the river got frozen"

This could be a reference to the frozen water in the lower levels of hell.

However these are not strong connections just food for thought. Some one should put more research into it.