SQL Reporting Services 2005 - Display For Two Times In One Cell

I have a cell in one of my reports that displays both a begin time and an end time. The problem is that the times are stored in military time and I need to display them in AM/PM format.

Currently I am doing the following:

CASE
WHEN DATEPART(HH, start_time) < 13 THEN RIGHT(CAST(100 + DATEPART(HH, start_time) AS CHAR(3)), 2)
ELSE CAST(DATEPART(HH, start_time) - 12 AS CHAR(2)) END + ':' + RIGHT(CAST(100 + DATEPART(MI, start_time) AS CHAR(3)), 2) +
CASE
WHEN DATEPART(HH, start_time) < 13 THEN ' AM' ELSE ' PM'
END
+ ' - ' +
CASE
WHEN DATEPART(HH, end_time) < 13 THEN RIGHT(CAST(100 + DATEPART(HH, end_time) AS CHAR(3)), 2)
ELSE CAST(DATEPART(HH, end_time) - 12 AS CHAR(2)) END + ':' + RIGHT(CAST(100 + DATEPART(MI, end_time) AS CHAR(3)), 2) +
CASE
WHEN DATEPART(HH, end_time) < 13 THEN ' AM' ELSE ' PM' END AS 'TIMES',

in order to present the two times in one cell in AM/PM format. While this works, I'm wondering if there is a way in Reporting Services layout mode to give a date or time format mode to a cell that will work for two times with a dash in between them, rather than simply for one time. Then I could pull the times in the format that they are stored on the database and use Reporting Services to format them. Does anyone have any suggestions?