Translation of intercambiar

We arrived at my Casa, a private home with an extra place that the family rented. I sat down and they gave me a drink. They explained me that they wanted me to stay at another house for some reason.
I wrote you an email. Is this still your address? Please respond if so. Anything goes. I am with May tomorrow. I hope that is OK with you... You're checking out the new Ford, I heard. A great car.
We told the cabdriver the streetname we would like to go and he brought us there. This time the place did look like a three star hotel and we booked a night. I went to pay for the taxi ride.