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: Thanks so much for your help today! Sentence2: Have a great time! Sentence3: Yes, that would be great! And if you could give me the entrance fee that would be great too. Sentence4: I would like to visit a college in the centre of town. Sentence5: Okay can I have the address and phone number? Sentence6: I also am looking for a train on wednesday leaving peterborough. Sentence7: Did you have a destination or time in mind? Sentence8: No that is it. Thank you very much. Sentence9: well we have quite a few what area please Sentence10: I will be booking your tickets for train TR7413. It will leave at 8:06 and arrive at 08:56. The total fee is 66 GBP payable at the station. Reference #VAFLR9OD . Sentence11: Yes. I am going to Peterborough. Sentence12: The address is saint Andrew's street, and the phone is 01223334900. Can I assist with anything else? Sentence13: sure, what information do you need? Sentence14: Sure. There are 13 colleges in the centre. Most are free, but some have a small entrance fee. Would you like a list or a recommendation? Sentence15: Yes, that's right. It should leave after 8:00. Book for 4 people. Sentence16: I am going to be attending college soon and want to browse one of the campuses while I am in the area. Sentence17: Well they are almost all free and located in the city center. I would recommend Christ's College for one. Sentence18: I'd like to confirm that you want a train leaving Cambridge and arriving at Peterborough. Sentence19: You are quite welcome, we are happy to help. Is there anything further that you need assistance with today? Sentence20: I am planning a trip in Cambridge Question: Who has spoken the sentence 8? (A) User (B) System
Output: 


Answer: (A) User