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: Thanks! No that's it! Sentence2: Anything would be fine. Sentence3: I'd like to go to Emmanuel College from the restaurant. Sentence4: The address for bedouin is 100 Mill Road City Centre and the postcode is cb12bd. What kind of attraction are you looking for? Sentence5: I'm looking for a college, fairly close to the restaurant, if at all possible. Sentence6: Thanks for calling - and enjoy your trip! Goodbye! Sentence7: Your all set, look for a red lexus, the contact number is 07138753925, can I assist with anything else? Sentence8: There are many colleges in the area I recommend corpus christi it costs 2 pounds but is beautiful. A free college is emmanuel college. Can I help with anything else? Sentence9: I need a taxi to help me get around between the two areas. I want to leave the restaurant at 12:00. Sentence10: Do you have a certain type of cuisine in mind? Sentence11: i am looking for a restaurant in the expensive price range and should be in the centre part of town. Sentence12: Well, if you're interested in something unusual, we have the Bedouin, which serves African cuisine. Or there's the more traditional Cote, which serves French cuisine. Sentence13: first, let's determine which of the two colleges you would like to be your destination after the restaurant. Sentence14: Thank you what is the address and what is the pesticide for Bedouln. What fun attractions are near by? Question: Who has spoken the sentence 6? (A) User (B) System
Output: 


Answer: (A) User