How to map Same kind of inputs to different Slots in Rasa

Hi Team, I am trying to read two different inputs fro user servername :apvdt3478 and emp_id : avihwa46

Both of the above having similar input .How to distinguish between these two. I have already used regex for it for Serverid Regex is ^[a-zA-Z][0-9] $ and empid regex is ^[a-zA-Z0-9]*$

with trained data it is working correctly but with new data, it is always referring to empid, when I trying to enter value for serverid.

Please suggest updation .