Anybody arrive BKK on UA and connect to TG Domestic while using th transit hotel to save time of clearing passprot control in BKK and sleeping outside the airport?

It's all cool with UA and TG I just would like to know about what to do after I wake up and look to get to the TG domestic flt? Many TG passengers clear in Phuket etc....How do I catch my TG to HKT?????? Transit Desk local???