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: Can you make a recommendation? Sentence2: What is the address? Sentence3: Have a nice day. Sentence4: Best price of all, free of charge. But the jello cups are extra, (kidding of course). Any further questions today? Sentence5: I found five restaurants that meet your requests, and none of them require you to get wet. Can I make a reservation for you at one of them? Sentence6: No that will be all. Sentence7: I wasn't really planning for a swim, but I would prefer a place that serves Indian food. Are there any in the west? Sentence8: I am looking for an expensive restaurant in the west part of town. Sentence9: We have everything from colleges to museums and entertainment. Do you have a preference? Sentence10: Yeah that will be all. Bye, thanks. Sentence11: Here you go 31 Newnham Road Newnham Sentence12: I highly recommend india house. The phone number is 01223461661. Is there anything else I can help you with? Sentence13: Actually, I just need to know what the entrance fee is. Sentence14: The postcode for India House is cb39ey. Will that be all? Sentence15: I don't need you to book but I would like the postcode for india house, please. Sentence16: My favorite is the Cafe Jello Gallery at 13 Magdalene Street. Would you like their phone number? Sentence17: looking for places to go in town. The attraction should be in the same area as the restaurant. Sentence18: No, but if you could pick me the best one and give me the phone number. That would be good. Sentence19: graffiti is an expensive place int he wet part of town. Sentence20: Would you like me to book a reservation at the India House for you today? Question: Who has spoken the sentence 2? (A) User (B) System
Output: 


Answer: (A) User