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 will look that up for you. Sentence2: Ah, there are a number of guesthouses with 4 stars in the north. Do you need free internet or parking? Sentence3: Absolutely! From where to where? Sentence4: Okay what time is that? Sentence5: I've located LA Margherita. What information would you like about the restaurant? Sentence6: I'm sorry no there is not. May I search gain with different criteria? Sentence7: How about Guesthouse, instead? Sentence8: Internet or parking doesn't matter. Which guesthouse do you recommend? Sentence9: no that is OK for today Sentence10: I was able to book it, reference number is 4IOG1MD6 . Sentence11: I would also like some help finding info on the La Margherita restaurant. Sentence12: You're all ready to go. Reference number is 3CM9X6CQ . Anything else I can help you with? Sentence13: I need to book it for the same group the same day at 20:00 Sentence14: I'm visiting the north side of Cambridge, can you help me find a hotel there? Sentence15: That time is 20:00. Sentence16: Yes, please. There will be 5 of us for 4 nights, starting on Monday. Sentence17: Okay! I've booked you a white Ford. The contact number is 07081197533. Can I help you with anything else? Sentence18: Great. I was also interested in getting a taxi, can you help me with that? Sentence19: It has been a few minutes and I swear I hear snoring on the other end, are you there? Can I get that info? Sentence20: I recommend Archway House. They are located at 52 Gilbert Road in postcode CB43PE. Would you like me to book a room for you? Sentence21: Okay, well if you think of anything else, you know where to find me! Otherwise, have a wonderful trip! Sentence22: Are there any 4 star? Sentence23: We have a few 2 star hotels with free internet and parking. Can I get information on one of those? Sentence24: I would like to commute between the hotel and restaurant. I'd like to be at the restaurant by the booked time. Question: Who has spoken the sentence 2? (A) User (B) System
Output: 


Answer: (A) User