A woman called a travel agent to book a flight.
"I want to go from Chicago to Hippopotamus, New York," she said.
The agent was lost for words and after a moment replied, "are you sure that's the name of the town?".
"Yes, what flights do you have?" replied the customer.
After searching for a while, the agent said, "I'm sorry, I've looked up every airport code in the country and can't find a Hippopotamus anywhere."
"Oh, don't be silly. Everyone knows where it is. Check your map!" the customer responded.
The agent scoured a map of the state of New York and finally said, "you don't mean Buffalo do you?"