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'.
Q: Person1: Hi Mark .
Person2:Hi .
Person1: What are you planning to do today ?
Person2:I'm not sure yet .
Person1: Would you like to have lunch with me ?
Person2:Yes . When ?
Person1: Is 11:30 AM OK ?
Person2:Sorry , I didn't hear you . Can you say that again please ?
Person1: I said , 11:30 AM .
Person2:Oh , I'm busy then . Can we meet a little later ?
Person1: OK , how about 12:30 PM ?
Person2:OK . Where ?
Person1: How about Bill's Seafood Restaurant ?
Person2:Oh , Where is that ?
Person1: It's on 7th Street .
Person2:OK , I'll meet you there .
A:
informal