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:     Do you like a package tour or to travel alone ?  
 Person2:  I prefer a package tour , and we don't have to worry about accommodation , meals or that sort of trivial demanding things .  
 Person1:      I prefer travel alone . I'll have a lot of time lingering at one place . 

1