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: It's located in southern Cambridge at cambridge leisure park, clifton way. It's phone number is 00872208000. Do you need anything else? Sentence2: Thank you, that is all I need. Sentence3: thanks alot and is there parking for two cars? Sentence4: What type of food would you like? Sentence5: Actually never mind. I would actually like just find a place to stay in the cheap price range in the west. Sentence6: Yes, can you help me find a place to eat? Sentence7: Sure, I can help you with that. Was there a particular type of cuisine you were interested in? Sentence8: Fantastic, enjoy your trip! Sentence9: I certainly hope so! We have a lot of interesting places to see in Cambridge. Is there something specific you're looking for? Sentence10: There is a place I want to see, can you help me? Sentence11: The hotel I'm looking for should have a star of 4, in the cheap range, somewhere in the West. It'll be for 3 people and 4 nights starting Wednesday. Sentence12: Okay. We have you booked at the Cambridge Belfry. The reference number is Y8Y2HVXE . Sentence13: I am looking for a attraction called cineworld cinema. Sentence14: I'm afraid I can only see that they have parking available. If you need to park two cars, I would phone them on 01954714600. Can I help with anything else? Question: Who has spoken the sentence 1? (A) User (B) System
Output: 


Answer: (B) System