I was flying about 70 miles West of DFW and saw a 172 flying along . I decided to follow him to see where he was going . It was N5390 and leveled at 5,500ft. on a hdg. of 45-50 degrees . I followed him over 2 hrs. and gave up . Thought these planes made circuits of some sort unless they say they are departing to Las Vegas or somewhere else far off

? I had not heard any communications from him so had no idea where they intended for this one to go . I followed one the other day and it landed at Alliance .
Thanks ,
Jamie