Definition: You are given a conversation between two people. 'Person1:' and 'Person2:' are used to separate their respective dialogues. You are required to assign a label 'formal' if there is an absence of emotion and a presence of questions anywhere within the conversation. If such pattern is not found assign the label 'informal'.
Input:  Person1:       What places does the tour include ?  
 Person2:You will visit the Hyde Park , Poet's Corner , Tower of London , Fleet Street and Tower Bridge .  
 Person1:        So many places I have been looking forward to . We will take part in the group .  
 Person2:I think you will enjoy your journey . 

informal