Definition: You are given a conversation between two people. 'Person1:' and 'Person2:' are used to separate their respective dialogues. If the conversation begins with a question, label it '1' otherwise '0'.
Input:  Person1:     What happened to you yesterday ?  
 Person2:  Oh I fell over on the way to work .  
 Person1:      Oh I see . So that ’ s why you didn ’ t come in ?  
 Person2:  Yes and I broke my phone too so I couldn ’ t call you .  
 Person1:      Oh dear , that sounds terrible .  
 Person2:  It was ! But the worst thing was I tore my best shirt .  
 Person1:      Oh dear . Well , get well soon and try to be more careful in future . 

1