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 apologize, are any of those in the Centre area? Sentence2: I recommend the Primavera museum at 10 King's Parade, postcode cb21sj. Sentence3: Yes I'm also looking for places to go in the same area. Sentence4: There are quite a few European restaurants, what price range are you interested in? Sentence5: Either is good. Pick the best and give me the address postcode and phone number. Sentence6: Yes, two modern European and two European are listed in Centre. Do you have a preference? Sentence7: The area doesn't matter. Sentence8: Thanks so much for your help, I have all the info I need for right now. Sentence9: There are 2 restaurants listed as European, and 3 listed as Modern European. Are you more interested in one group? Sentence10: What type of attraction would you like to visit? Sentence11: can you find me one that is in the moderate price range? Sentence12: It doesn't matter, anywhere in town that's in the same area as the restaurant. I'd like the postcode too, please. Sentence13: How about Galleria? It's a European restaurant at 33 Bridge Street, CB21UW. Their phone number is 01223362054. Can I help you with anything else? Sentence14: I'm looking for a great European restaurant. Can you help with that? Sentence15: Thank you for calling! Goodbye. Sentence16: Yes, I can help you with that. What area are you interested in? Question: Who has spoken the sentence 4? (A) User (B) System
Output: 


Answer: (A) User