Thank you glc & AZBuck.
based on your suggestion, this is the current plan
1. Drive from Dallas to Hot springs, AR on Sat morning
2. Visit Hot Springs and drive to Memphis and stay there on sat night.
3. Drive to Gatlinburg on sunday morning.

Planning to drive back to Dallas from Gatlinburg through Atlanta. Could you please suggest if there are places to visit and stay for a night.

Thanks