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'.

Ex Input:
Person1: Now I know why I split up with Mike . We found we were simply not good for each other .
Person2:In what ways ?
Person1: Well , he is a typical Sagittarius guy , while I am a Cancer . We aren't really compatible
Person2:Ha-ha , so you believe in astrology ?
Person1: What's strange about that ! As a person born under the sign of Cancer , I am home-loving and wish for a peaceful family life . But according to astrology , Sagittarius guys are too adventurous and risk-taking.They seldom think of leading a settled and peaceful life .
Person2:Is that so ? I'm afraid it is too narrow-minded to judge people using astrology . It's all stereotypes !
Person1: But in my case , the fact matches the theory . Mike is humorous , energetic , always as fresh as a daisy , but probably too ambitious . It frightens me !
Person2:But as far as I remember , you two caught on like a house on fire when you first met .
Person1: Exactly . But later on , he cares more about his career than love . Work seems to be the better all , and all for him-so much that he doesn't even grudge sparing a day out with me .

Ex Output:
informal

Ex Input:
Person1: Hi , may I speak to Ryan , please ?
Person2:This is Ryan you are speaking with . What can I do for you ?
Person1: Hi , Ryan , this is Malia , and I will not be coming to work today .
Person2:What is wrong with you ?
Person1: I have really bad poison oak and can ' t stop itching .
Person2:How long have you had it ?
Person1: I ' Ve had it a few days , but the rash really got bad last night .
Person2:How have you been treating it ?
Person1: I have some lotion that the doctor gave me , as well as an antihistamine .
Person2:That should work . I ' ll see you tomorrow when you return to work .

Ex Output:
formal

Ex Input:
Person1: What a beautiful day !
Person2:It is really gorgeous out today . I remembered the weatherman said it is supposed to rain .
Person1: I heard that it's supposed to get up to 90 degrees Fahrenheit today .
Person2:Really ? That's unusual for October , isn't it ?
Person1: Well , you could never tell about the weather here in New York .
Person2:Yes , that's true . Still , it's hard to believe . Yesterday our high was only 50 degrees Fahrenheit .

Ex Output:
informal