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:       Good afternoon , how can I help ?  
 Person2:Hi there . I'd like to draw some cash from my Fund Account at the Securities Company . Could I check my balance before I withdraw anything ?  
 Person1:        Of course . Your balance is 92,320 RIB in your Securities Account . How much would you like to withdraw ?  
 Person2:I'd like 20,000 RIB , please . If that's possible .  
 Person1:        No problem . Please fill in this transfer form that will authorise us to send the amount from the Securities Company to your account . 

formal