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'm actually looking for something that has great architecture. Sentence2: There are three pizza huts. One in the city center, one in the east and one in the south. Which would you like information on? Sentence3: It doesn't matter. What is the food type and addresses? Sentence4: Actually, could you check if there is a pizza hut in fen ditton? If so, could I have the address and phone number? Sentence5: Old Schools is free to tour and the phone number is 01223332320. Is there anything else I can help you with? Sentence6: The Man on the Moon is a great concert hall. How does that sound to you? Sentence7: Happy to be of service. Thanks for using the Cambridge TownInfo centre, and have a great day! Sentence8: The school is fine. What is the entrance fee and phone number? Sentence9: There are 4 churches and a school. Do you have a preference? Sentence10: Thank you - that's all I need today. Sentence11: A friend was raving about this restaurant called Pizza Hut. Can you help me find it? Sentence12: I'm looking for an exciting place to go in the centre of town. Sentence13: Pizza hut city centre is located in the centre area and serves italian food and is in the cheap price range. Is any more information needed? Sentence14: Yes, there is! It's address is Cambridge Retail Park Newmarket Road Fen Ditton and it's number is 01223323737. Question: Who has spoken the sentence 11? (A) User (B) System
Output: 


Answer: (B) System