from langchain_core.messages import HumanMessage

config = {"configurable": {"thread_id": "ticket-seq"}}

state1 = {
    "messages": [
        HumanMessage(content=(
            "Hi, I'm being charged twice for my subscription. "
            "Can you help me figure out what's going on?"
        ))
    ]
}
response1 = graph.invoke(state1, config=config)