Narrative:

First officer flying. Cleared to cross booze intersection at 11000 ft. Passing through FL180 I saw we were on profile. At that point flight attendant called and wanted some information. First officer changed FMC while I was talking to flight attendant and I did not notice we ended up crossing booze at about 12000 ft. No talking to flight attendants while on descent profile.

Google
 

Original NASA ASRS Text

Title: AN ACR FLT CROSSES BOOZE INTXN 1000 FT ABOVE THEIR ASSIGNED XING ALT SE OF CLT, NC.

Narrative: FO FLYING. CLRED TO CROSS BOOZE INTXN AT 11000 FT. PASSING THROUGH FL180 I SAW WE WERE ON PROFILE. AT THAT POINT FLT ATTENDANT CALLED AND WANTED SOME INFO. FO CHANGED FMC WHILE I WAS TALKING TO FLT ATTENDANT AND I DID NOT NOTICE WE ENDED UP XING BOOZE AT ABOUT 12000 FT. NO TALKING TO FLT ATTENDANTS WHILE ON DSCNT PROFILE.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.