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: What type of attraction would you like? Sentence2: Yes, I apologize. What is your price range for the hotel? Sentence3: That will be all thank you for your time. Sentence4: I'm also looking for somewhere to go in the centre of town, please. Sentence5: Their address is 74 Chesterton Road. The postcode is cb41er. They are rated 2 stars. Sentence6: You're welcome. Have a great day. Sentence7: I will also need a taxi to get to the attraction by 6:30 from my hotel. Sentence8: Yes, please. I need the address, postcode and star of the hotel please. Sentence9: The Junction is a theatre. The postcode is cb17gx Sentence10: OK, we have booked a Red Skoda to take you to the Junction by 6:30 from your hotel. Contact number is 07776766676 Sentence11: Can you make a suggestion? Sentence12: I would like something cheap. Sentence13: We have many attractions. What type of attraction would you like? Sentence14: No I don't have a preference. Sentence15: We have 18 places to stay in the moderate range. What area would you like to stay in? Sentence16: I apologize for that, I'm actually looking for a taxi to leave the Junction and get to my hotel. I need to leave the Junction by 06:30. Sentence17: Yes, of course! What price range are you thinking? Sentence18: I am traveling to Cambridge and am excited to see some tourist attractions. Can you help me find a place to stay while I am there? Sentence19: Moderate price range please. Sentence20: Is there a particular attraction you want to go to? Sentence21: I need attraction type and the postcode. Sentence22: How about the ashley hotel? Sentence23: I suggest the Junction located on Clifton Way. Would you like more information? Sentence24: I am looking for a hotel. Sentence25: It doesn't matter what area, but I would like it to have free parking. I don't care if it has internet. Sentence26: No problem. Look for a grey Lexus, contact number: 07151867055. What else can I assist you with today? Question: Who has spoken the sentence 22? (A) User (B) System
Output: 


Answer: (A) User