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: Enjoy your stay in Cambridge. Sentence2: Are you looking to stay in a guesthouse or hotel? What are of town do you prefer? Sentence3: No. But I do need a taxi from the hotel to the college. Sentence4: Okay, well, again, I really appreciate all the help you gave me. Sentence5: I am planning a trip and need help finding a place to stay. Sentence6: I was thinking a guesthouse on the east side of town Sentence7: I can do that. Do you have a departure time or arrival time for your trip? Sentence8: Wait! I forgot something. Can you also tell me about a place called Saint John's College? Sentence9: here are the details,Booking completed! Booked car type : black volkswagen Contact number : 07300200666 Sentence10: I can afford an expensive place, but if there are no rooms a cheap hotel will do as well. Sentence11: Thank you, that's all I need today. Sentence12: Yes, of course, how could I forget?! I'd like to leave the hotel by 16:45. Are you able to book for that time? Sentence13: Allenbell is a nice place, cheap. There wasn't anything expensive. Sentence14: that is fine. book for 8 people and 5 nights from friday Sentence15: you are welcome. call me if you need anything else. Sentence16: Booking was successful. Reference number is : BLY0KYCW . anything else? Sentence17: Of course. What would you like to know? Sentence18: you are welcome Sentence19: St. John's College is located in the centre area. Do you need additional information? Sentence20: No, that's it. Thank you for all your help. Sentence21: Do you have a price preference? I have both cheap and moderately priced guesthouses available. Sentence22: What area is it located ? Question: Who has spoken the sentence 8? (A) User (B) System
Output: 


Answer: (A) User