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: Can you first tell me where it is located? It needs to be in the Centre part of Cambridge. Sentence2: I am looking for a moderately priced restaurant in the Cambridge area. I really like European food. Sentence3: How many stars does the hotel have? I am looking for a zero star hotel. Sentence4: The hotel is European, located in the centre, and is moderate in priced. Is there anything else I can do for you? Sentence5: I would recommend Cityroomz as it fits your criteria. It has 0 stars and is in the centre of town. Sentence6: Yes. It is located at 15 - 19 Trumpington Street. Sentence7: You are welcome and have a great day. Bye. Sentence8: Cityroomz is just a hotel and its postcode is cb12tz. Sentence9: Fantastic, that's all I needed, thank you. Sentence10: The hotel du vin and bistro meets your needs. Would you like to book it? Sentence11: The postcode is cb21qa. Anything else I can do for you? Sentence12: I would be happy to get a table reserved for you. What day and time would you like? Also, will there be anyone else joining you? Sentence13: It does not have a star rating. Sentence14: I will be there on Sunday. It's just me. Sentence15: What's the hotel type and postcode? Sentence16: What time on Sunday shall I book a table? Sentence17: What is the type of hotel? Sentence18: What is the postcode? Sentence19: I don't know where my head was, I don't need a reservation. Thanks. I do need a 0 star hotel in the centre though. Sentence20: Can you please book the restaurant? Question: Who has spoken the sentence 7? (A) User (B) System
Output: 


Answer: (B) System