How to run sp_start_job with in a stored procedure when the user does not have access to the MSDB database.

I have created a stored procedure that I would like to run from a SSRS report being used on a 3rd party software.  However the login to the 3rd party software does not have access to the MSDB database and I do not want them to have access to that database.  This report will give the end user the way to schedule the update without contacting me.  This is what I have for the sp:

create procedure lrp_Merge_Duplicates
as

execute msdb.dbo.sp_start_job 'Merge Duplicates'

Is there a I can do this.

Thanks,

Gabicus