To get description of travel status

In table FTPT_REQ_HEAD, for field STATUS there is no value exist for STATUS 4 and STATUS 5 in domain level.

I need to know the travel STATUS text that is mentioned in domain level value range for that STATUS field.

Now when I am executing table FTPT_REQ_HEAD for STATUS 4 and 5, I am getting some output, why this is happening , and if some entries are there for STATUS 4 and 5 then how to get that description text for STATUS 4 and 5??