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: Lets find a place first, I would like one in the north. Sentence2: Thank you, that is all for today. Goodbye. Sentence3: I'm sorry. I don't have any matching results. Would you like to try a different type of food, perhaps? Sentence4: What days would you like ? Sentence5: Yes, please try Chinese food instead. Sentence6: get me their phone number and address and whether they have free parking Sentence7: They are located at 66 Chesterton Road Chesterton in the north part of town. Zip code is cb41ep and their hone number is 01223366552. Sentence8: Bye. Thank you for using our services. Sentence9: Not at the moment but I would like their phone number and address with postcode. Sentence10: I'm looking for a place to dine. The restaurant should serve unusual food and should be in the same area as the hotel. Sentence11: There are three options available. I'd recommend The Hotpot. Would you like to book a table? Sentence12: acorn guest house is a great place to stay. Sentence13: Yes, Acorn Guest House has free parking. They are located at 154 Chesterton Road. Their phone number is 01223353888. Sentence14: I'm in the midst of planning my trip to Cambridge and need help finding a guesthouse that offers free wifi Question: Who has spoken the sentence 1? (A) User (B) System
Output: 


Answer: (B) System