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: How about thai? Are there any thai restaurants in the west of the moderate price range? Sentence2: May I have the phone number for that place? Sentence3: The phone number is 012233236939. Sentence4: 7:00 , dop you need anything else ? Sentence5: What is the departure time? Sentence6: we still cant find any of that criteria. can we change location? Sentence7: I'm sorry, there aren't any moderately priced Thai restaurants in the West. Sentence8: I am trying to plan my trip in Cambridge and need a place to dine. I need something kind of moderate for price and on the west side. Sentence9: That is okay. An Indian restaurant would be great, which place do you recommend? Sentence10: I can't find any indian places in the moderately priced range. Can I try something else? Sentence11: kohinoor is a cheap indian restaurant located in the centre. Sentence12: We have three restaurants. Do you prefer British, Indian or Italian cuisine? Sentence13: maybe you could check any price range. Sentence14: Yes try a different location. Question: Who has spoken the sentence 12? (A) User (B) System
Output: 


Answer: (A) User