It's a pretty simple solution, just like what Prostar said above. Setting up your phone like a HotSpot is the best solution (there should be a section that let's you enable your hotspot and it should produce a network name and a password). I used to do this all the time when I was in hotels and it's very viable, depending on your network provider.
If you let us know what phone you have, we could walk you through it step by step!