chat_history: ['Seems like every time we get a bill and I think I know how much it is, it']
sys_response: It what?  Its way higher?  If that's what you meant to finish with then I totally feel you.  Especially during the summer with the air conditioning running so much.
situation: Seems like every time we get a bill it's higher than expected. I thought we had lowered the electric bill but it actually went up.