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: Sure thing, what kind of food would you like. I have several options? Sentence2: Thanks. That was all I needed. Goodbye. Sentence3: I do not have information on their entrance fee, I'm sorry. Sentence4: You got it! I've booked a taxi for you. It'll be a yellow ford with the contact number 07730485057 Sentence5: Can you tell me if there's a concerthall in the city center? Sentence6: Okay. Can you tell me the departure or arrival time? Sentence7: There's a place called the Man on the Moon that is a great concert hall. They are located at 2 Norfolk Street. Postcode is cb12lf. Their phone number is 01223474144. Sentence8: sure, the postcode is cb21uw Sentence9: enjoy your stay! Sentence10: Lan Hong House is Chinese food, Galleria is European style food and the Varsity Restaurant is international dining. Do any of these interest you? Sentence11: Thank you, I also need a taxi to commute between the two places. Sentence12: What is the entrance fee? Sentence13: Ok, well thanks anyway. Can you help me find a restaurant in the centre of town also? I prefer something moderately priced. Sentence14: I'd like to leave the man on the moon by 04:45, can you set that up for me? Sentence15: I'm not too picky on what kind of food as long as it is good. Can you make a few suggestions please? Sentence16: Galleria sounds good. Could I get the postcode for that please? Question: Who has spoken the sentence 14? (A) User (B) System
Output: 


Answer: (A) User