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: Royal Standard's phone number is 01223247877. They are located at 290 Mill Road City Centre. Sentence2: What is the food type and price range? Sentence3: No thank you. I'm also looking for a 4 star guesthouse. Sentence4: Ok. I will take it. Sentence5: Great! Would you like me to book a room for you? Sentence6: I don't have a location preference but can you give me the phone number, postal code and price range? Sentence7: No thanks. Is there another with free wifi? Sentence8: Of course. I would recommend the allenbell. It is a cheaper hotel. It's postcode is cb13js. The number is 01223210353. Sentence9: I'm not sure yet. I'll take a place with free wifi. Sentence10: the alexander bed and breakfast has free wifi. Sentence11: Alright, thanks for the information. That was all I needed for today. Sentence12: They serve gastropub cuisine and are in the expensive range. Can I book that for you? Sentence13: I am showing 5 types of guesthouses. Four of them have free wifi and parking. How long were you planning on staying? Sentence14: You're very welcome, have a lovely day. Sentence15: Is there a particular area in which you'd like to stay? Sentence16: Hello, I'm planning a trip to Cambridge and looking to make a reservation at a restaurant called the "Royal Standard". Can you get me the information for that restaurant please? Question: Who has spoken the sentence 8? (A) User (B) System
Output: 


Answer: (A) User