Teradata min and max dates Find the Employees Start Date and Time and End Date and Time for each date

I have columns AssignedTo, InternalID, Task Function, Min(STARTDATE), Max(ENDDATE) AssignedTo, InternalID, Task Function STARTDATE, ENDDATE Joe 67077 Write the letter 08/24/2017 05:30 AM NULL Joe 16354 Send the letter 08/24/2017 06:30 am 08/24/2017 07:30 am Joe 16359 Mail Letter 08/24/2017 08:32 am 08/24/2017 08:35 am Joe 13340 Call to Member 08/24/2017 09:32 am 08/24/2017 10:35 am Joe 13318 Fax to Member 08/24/2017 12:01 pm 08/24/2017 12:05 am Joe 14895 Fax to Member 8/20/2017 11:28:34 PM 8/20/2017 11:28:34 PM Joe 79806 Call to Member 08/24/2017 03:30pm 08/24/2017 04:30 PM

Trying to create 1 line line this: Assigned TO: Date: Start Date End Date Joe 08/24/2017 08/24/2017 05:30 AM 08/24/2017 04:30 PM

I want the first Start Date and last End Date for each day the assigned to is in the system for that day. I’m using teradata. i’m sure this has been asked some where i just have not been able to locate it. Or I have been over thinking this.