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: Just need a taxi from gonville to the primavera, I want to leave by 15:45 Sentence2: I have reserved 5 days at Gonville hotel beginning Friday. Your reference number is KS5S2XSF . Sentence3: Hello, please find me a museum in the center of town. Sentence4: find me the address ,phone number and fee for an art museum in the center of town. Sentence5: I have places that meet those requirements all over town, except in the east. If price is not an issue, I recommend the Gonville Hotel in the center. Sentence6: Oh, no, I am happy with Primavera, thanks. I just need that reservation at Gonville. 5 nights on Friday for 1 person please. Sentence7: Thanks, yes please. I'm also looking for some 3-star lodgings that offer complimentary parking. Sentence8: What type of attraction? Sentence9: I am interested in a museum. Sentence10: Actually, I'm all taken care of. Thanks. Goodbye. Sentence11: You're welcome! goodbye Sentence12: well then the castle galleries is the place to go. Sentence13: There are eleven to choose from. Would you like an art museum or another kind of museum? Sentence14: Primavera is located at 10 Kings Parade. The phone number is 01223357708. The admission is free. Is there anything else I can find for you? Sentence15: Booking completed! Booked car type: yellow volkswagen. Contact number: 07294843257. Is there anything else I can help you with? Sentence16: The Gonville Hotel sounds good. As long as it is close to the attraction. Question: Who has spoken the sentence 14? (A) User (B) System
Output: 


Answer: (A) User