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: There are five moderate priced Italian restaurants is there any area you prefer to eat in? Sentence2: No, any area would work, is there one that is available at 13:15 on thursday? I need a reservation for two people. Sentence3: Great. You can help me pick out a restaurant go to. Sentence4: If you're certain then I guess not. Thank you for all your help. Sentence5: Are you certain the entrance fee isn't listed? Sentence6: I don't have any information on the entrance fee, but the phone number is 01223576412 and it is on Colville Road, Cherry Hinton. Sentence7: You're welcome. Have a great day! Sentence8: The Cherry Hinton Village Centre is the spot you're looking for. They're on Colville Road. Can I help you with any other info? Sentence9: I also want to find a multiple sports place in the east area. Sentence10: Yes, there are many great restaurants to chose from, what kind of food would you like? Do you have a price range? Sentence11: I've reserved you a table for 2 at one of my faves: Prezzo. Reference number OOAMXI99 . Can I help with something else? Sentence12: I would like to eat Italian food. I'm looking for something in the moderate price range please. Sentence13: Yes, I would like the phone number adderss and entrance fee. Sentence14: Yes I am certain, I am sorry. Is there anything else you needed to know? Question: Who has spoken the sentence 5? (A) User (B) System
Output: 


Answer: (B) System