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 am looking for a restaurant in the centre of town. Sentence2: I also need a taxi to get me between the gallery and restaurant, I want to leave the restaurant by 13:15 Sentence3: There are 2 restaurants that meet your criteria; Eraina and Michaelhouse Cafe. They are both in the centre of town. Sentence4: The Ruskin Gallery is in the centre area and the phone number is 01245493131. Would you like the address? Sentence5: I'll be happy to help you with that. Is there a certain type of food you would prefer? Sentence6: I would like a restaurant that serves european food in the expensive price range please. Sentence7: Is there anything else I can help you with today? Sentence8: Glad I could be of assistance, have a good day! Sentence9: Yes, I'm also looking for an attraction called Ruskin Gallery. Can you get me some info on that? Sentence10: Sure, their phone is 01223368786 and their address is Free School Lane City Centre cb23rh. May I help with anything else? Sentence11: No address needed, thank you. I have all the information I need. Sentence12: Great, can I have the phone number and address for Erania please? Sentence13: Alright, I have your taxi booked. It will be a red lexus, and the contact number is 07952562480 Sentence14: Thank you very much, that will be all you can do for me for today. Question: Who has spoken the sentence 1? (A) User (B) System
Output: 


Answer: (B) System