I’ve noticed the AC problem and the technician was scheduled for that day to work on it. Since the temperature wasn’t that warm on that day, I thought I rather accomdate John on his last minute change of date. The AC problem is now FIXED and it WORKS properly.
Although, when John made the last minute change, the apartment wasn’t ready for checkin, which I informed him, I made the apartment ready at the checkin time which is 3:00 pm. Since I was in the next door apartment, when John messaged me around 3:30pm for the key, I quickly went downstair and gave the key to his son; and John told me in another message he would be there a little later.
As I stated on the Airbnb add, my place is about a mile away from the NoMa metro station for anyone who reads the add before making a reservation. My place is less than ten minutes for most of the attractions like Capitol Hill, Smithsonian museum, downtown, union station, U street corner, etc... walk distance for H street corner.
I thank John and his son for staying at my place.