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: Thank you! I don't care about the price range, but I would like to stay in the East part of town, please. Sentence2: Glad to be of help! have a great day! Sentence3: Yes, it is located on the east part of town. Would you like to book a room? Sentence4: I don't have any 4 star hotels, but I do have several 4 star guesthouses. Carolina Bed and Breakfast is a 4 star guesthouse. Sentence5: Hello, can you recommend any theatres in the Centre of town, please? Sentence6: yes for 7 for 5 nights starting saturday, and I need the reference number too please Sentence7: Is it in the east part of town Sentence8: Ok. I was to take care of that for you. Your reference number is GURAZE8G . Sentence9: Sorry, my wife just said that we won't stay in a hotel with any less than 4 stars, do you have something that meets that criteria? Sentence10: I really love The Cambridge Corn Exchange located on Wheeler Street. I don't have admission information, but you can call them at 01223357851. Sentence11: I have about 29 choices. Is there a certain price range or area you prefer? Sentence12: I also need a place to stay with free parking but internet isn't needed. Sentence13: Excellent, thank you for your help today! That will be all. Sentence14: I'm sorry we do not have the entrance fee, only the phone number which is 01223357851. Sentence15: You don't have what it costs to get in? I need the entrance fee if you would please Sentence16: I like the Carolina Bed and Breakfast. Can I get you information on it? Question: Who has spoken the sentence 6? (A) User (B) System
Output: 


Answer: (A) User