Definition: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.

Positive Example 1 -
Input: Sentence1:i need a place to dine in the center thats expensive Sentence2: I have several options for you; do you prefer African, Asian, or British food? Sentence3: Any sort of food would be fine, as long as it is a bit expensive. Could I get the phone number for your recommendation?Question: Who has spoken the sentence 2? (A) User (B) System
Output: Answer: (A) User

Positive Example 2 -
Input: Sentence1: Guten Tag, I am staying overnight in Cambridge and need a place to sleep. I need free parking and internet. Sentence2: I have 4 different options for you. I have two cheaper guesthouses and two expensive hotels. Do you have a preference? Sentence3: No, but I'd really like to be on the south end of the city. Do any of those fit the bill? Sentence4: Sure. Does price matter? We can narrow it down and find exactly what you need. Question: Who has spoken the sentence 4? (A) User (B) System
Output: Answer: (B) System

Negative Example 1 -
Input: Sentence1: I am looking for a hotel named alyesbray lodge guest house. Sentence2: i have their info, what would you like to know? Sentence3: I would like to book a reservation for it. Can you help me with that? Sentence4: I sure can. First, I will need to know when you want your stay to begin and how many days you'll be staying. Also, how many people will be staying? Question: Who has spoken the sentence 1? (A) User (B) System
Output: Answer: (A) User

Negative Example 2 -
Input: Sentence1: Hi there! Can you give me some info on Cityroomz?. Sentence2: Cityroomz is located at Sleeperz Hotel, Station Road in the Centre area. It is a moderatley priced hotel with a 0 star rating. Would you like to book a room? Sentence3: Yes please. I need it for 7 people for 3 nights starting on tuesday. Sentence4: How many days would you like to book it for? Question: Who has spoken the sentence 4? (A) User (B) System
Output: Answer: (A) User

Now complete the following example -
Input: Sentence1: I would like to visit a college in the centre please. Sentence2: just one person please. Sentence3: What type of attraction would you like to visit? Sentence4: Wow! That's one smart place. Pick one that you like! Sentence5: You're welcome. Have a great day! Goodbye. Sentence6: Arbury Lodge is located at 82 Arbury Road, in the north area of town. It's 4 stars and moderately priced. Would you like to book a room? Sentence7: Sounds good. How many people should I make reservations for? Sentence8: I have made your reservation for 1 person, for 4 nights starting on Sunday. Your reference number is RX0F3K8S . Is there anything else I can do for you? Sentence9: Thanks so much for the information. Good day! Sentence10: looking for arbury lodge guesthouse Sentence11: you have been assigned a white skoda and the contact is 07605405449. what else do you need? Sentence12: thanks. i'm also looking for some places to visit around town. Sentence13: Yes I would like a room for 4 nights starting from Sunday. I will also need the reference number please. Sentence14: I also need a taxi between them that leaves the hotel by 12:30. Sentence15: great, i have 13 you could visit! Sentence16: gonville and caius college has a free entrance fee. Their phone number is 01223332400. Is there anything else I can help you with today? Sentence17: gonville and caius college is my favourite. can i give you their contact? Sentence18: Yes please give me their entrance fee and phone number. Question: Who has spoken the sentence 15? (A) User (B) System
Output: 


Answer: (B) System