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: I be traveling to Cambridge and can't wait to try the restaurants, but could you help me with a finding a hotel? Sentence2: Thanks, I also need a restaurant in the Centre that serves European food. It needs to be in the same price range as hotel. Sentence3: I was able to book that taxi for you. Their contact number is 07236475648. That will be a yellow honda. Can I assist you with anything else today? Sentence4: From the hotel. I would like to get a contact number for the taxi also, just in case something changes. Sentence5: Sure! I found ashley hotel. It is located at 74 chesterton road. Would that work for you? Sentence6: No that will be all thank you goodbye Sentence7: I would prefer a hotel type hotel, it just needs to be in the moderate price range and doesn't need to have free parking, but needs wifi Sentence8: You're welcome. Would you like a room, or perhaps I could help you with something else? Sentence9: Okay I was able to make you a reservation and your reference number is DWMSURSO . Sentence10: Could you also book me a taxi that arrives at the restaurant by the time of my reservation? Sentence11: Yes, can you tell me the star rating of that hotel? Sentence12: Sounds good. I would like to make a reservation for Friday at 17:15 for 4 people. Sentence13: It has 2 stars. Sentence14: Where will you be departing from? Sentence15: Would you prefer a guesthouse? The acorn guest house is in the north and moderately priced. 4 starts with free internet and parking Sentence16: Yes, that sounds like a good place. I appreciate the information. Sentence17: How about the Galleria? Sentence18: Thank you for using our system today! Question: Who has spoken the sentence 14? (A) User (B) System
Output: 


Answer: (A) User