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:       Would you cash these travelers ' checks , please ?  
 Person2:How would you like them ?  
 Person1:        In ten dollar bill , please .  
 Person2:Is there anything else ?  
 Person1:        Yes , I'd like to know how to send money to France . 

formal