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: Have a good day! Sentence2: Thank you. I am also looking for a place to dine. Im thinking British food and it should be in the centre. Sentence3: Could I get the stars of the hotel and phone numbers? Sentence4: Thank you - that's all I'll need today. I appreciate your help! Sentence5: There are 15 guesthouses with the preferences you have mentioned. Do you have a preference on stars or location? Sentence6: the alpha-milton guest house is a three star location in the moderate price range. their phone number is 122 331 1625. Sentence7: No just as long as it serves British food and is in the centre. I also need to get the post code for the one you choose. Sentence8: There are a total of 18 places that you can stay at. Would you rather have a guesthouse or a hotel? Sentence9: I don't care about the time or day. I would just like the postcode of a restaurant the serves British food in the centre area of town, please. Sentence10: I want to find a place to stay in the moderate price range. Parking doesn't need to be free. Sentence11: The Oak Bistro serves British food and is in the centre. The postal code is cb21eg. Sentence12: I would like a guesthouse please. Oh, and I don't need internet either. Sentence13: What day and time do you plan to dine? Sentence14: We've got seven different places in the center of town to eat with moderate to expensive pricing. Do you have a preference? Question: Who has spoken the sentence 12? (A) User (B) System
Output: 


Answer: (A) User