answer: #Person2# says toilets are all occupied. #Person1# feels shocked.
documents: #Person1#: By the way miss, where is the toilet?
  #Person2#: Toilets are in the rear, I am afraid all the toilets are fully occupied at the moment.
  #Person1#: What? Oh, what we live! Thank you very much for your help, miss.
  #Person2#: You are welcome.