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: Uh, let's set it up for a park visit. I'll need the address and is there an entrance fee? Sentence2: Thanks, that's great! I'm also looking for a train on Thursday from Kings Lynn. Sentence3: Happy to be of service. Thank you for using Cambridge TownInfo centre. Have a wonderful day! Sentence4: The address is milton country park, milton. Entrance is free! Sentence5: That should work for us, I will need tickets for 7 please and the reference number. Sentence6: The booking was successful. The total fee is 68.6 GBP and your reference number is 8TU1PRQV . Can I help you with anything else? Sentence7: Would you prefer to go boating, swimming, or to visit a park? Sentence8: Yes correct to cambridge, and I would like to arrive by 20:45. Sentence9: That would be to cambridge correct? I have 19 for that day. Did you have a certain time you wished to leave or arrive? Sentence10: There are 4 attractions in the north. Do you want to specify an attraction type? Sentence11: I am looking for places to go in town in the north. Sentence12: The latest train that leaves at 19:11 and arrives at 19:58 for 9.80 pounds. Would you like to book it? Sentence13: No I don't care. Sentence14: Nope, that's all, thanks. You've been most helpful today. Most helpful, indeed. Question: Who has spoken the sentence 3? (A) User (B) System
Output: 


Answer: (B) System