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: Do you know if they offer free parking? Sentence2: I'm looking for a hotel to stay that has free wifi, but doesn't need to have free parking. Sentence3: We have many options available to you that may suit you is there a particular part of town that you would prefer? Sentence4: Please book it for 1 person for 3 nights starting tuesday. Sentence5: Yes they do. Sentence6: No, I think you gave me everything, thanks! Sentence7: It's on Market Street the postcode is cb23nz and their phone number is 01223355397. Is there anything else you would like to know about this attraction? Sentence8: Okay, I've booked you a black bww and its contact number is 07157659853. Is there anything else? Sentence9: The Cambridge Belfry would suit you. It's in the west and is cheap. Would you like me to book you a room? Sentence10: Thank you goodbye. Sentence11: You're certainly welcome. Is there anything else I can help you with today? Sentence12: That should be all. Thank you for your help! Sentence13: Okay, your reference number is : VNH1WIJB . Is there anything else I could help you with? Sentence14: Yes, I also need a taxi from the hotel to the Holy trinity church. I want to leave the hotel by 21:30. Sentence15: I'm looking for Holy trinity church. Sentence16: No, surprise me! Just has to be cheap and a hotel. Question: Who has spoken the sentence 9? (A) User (B) System
Output: 


Answer: (B) System