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: Ok, can you get me a taxi? Sentence2: Unfortunately we don't have any moderate priced hotel type hotels. Would you prefer a different type or price range. Sentence3: Could you tell me what time you would like to leave? Sentence4: Absolutely. Where would you want to depart from and go to? Sentence5: Happy to be of service, and thank you for using the Cambridge TownInfo centre. Enjoy your stay in Cambridge! Sentence6: I would like it to take me between my hotel and the college. Sentence7: I'm sorry, I am actually looking for the postcode of King's College. Could you provide that for me? Sentence8: How about an expensive one? Sentence9: Yes your contact number is 07585258044. Will there be anything else? Sentence10: there are 2 expensive hotels available Sentence11: Book one of them for two people, five nights, starting Wednesday. Sentence12: Okay, you are booked at the Huntington for 4 nights. Your reference number is WZRJ2C6L . Sentence13: Absolutely - King's College is located on King's Parade, postcode cb21st. Will you be needing anything else today? Sentence14: I'm sorry, but neither are available on those days. Would you like to try a different starting day or number of nights? Sentence15: Could you provide the contact number please? Sentence16: Certainly, would you like a specific area of town? Do you prefer a hotel or guesthouse? Sentence17: Yes im looking to book a taxi from Cambride TownInfo Centre to a fancy restraunt rated 5 Stars! Sentence18: No I think that's all I need. Thanks for your help! Sentence19: What time would you like the taxi? Sentence20: I have confirmed your taxi, a white bmw will pick you up. Sentence21: I am also looking for a place to stay that has a star of 4 and free parking. Sentence22: We could shorten the stay to just four nights, I guess. Sentence23: No preference on location but I would like a hotel. I would also like moderate pricing. Sentence24: I want to leave the hotel by 14:15. Question: Who has spoken the sentence 8? (A) User (B) System
Output: 


Answer: (A) User