Translation of chill in Spanish

Anyway you let me know...the rest of the days I will be busy with the course. I am Italian but I live in Wien, Austria. I have not heard back from you since I sent you a message. Do you still want to chat my friend?
Just as we finished exploring the temple and were about to leave the big tourist buses arrived. We listened to a Cambodian song played by a group of handicapped musicians and left to see other sites.
There was an extra seat available (the last one apparently). We were so glad. 45 minutes later we sat in the place, eighty percent of the plane was empty. They really need to update their system.