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 am leaving from Norwich Sentence2: thats all i need thanks Sentence3: We have 18 colleges in town. Did you have an area or entrance fee in mind? Sentence4: Where are you leaving from? Sentence5: I need a trip going to Cambridge and arrive by 11:00 Sentence6: There are five entries meeting your specifications! They leave every hour starting at 05:16 to 09:16. Which would you like? Sentence7: 8 tickets are booked for TR4134 Norwich to Cambridge. Departing 9:16 arriving 10:35. Total fee is 140.8 GB payable at the station. Reference #X1F43YH3 . Anything else? Sentence8: Of course, I will be traveling on Tuesday. Sentence9: Christ's College is widely praised. Their postcode is cb23bu. Can I help with anything else today? Sentence10: We have many trains that meet that criteria. Can you tell me what day you are looking to travel on? Sentence11: I am also looking for any colleges in town. Can you name me any? Sentence12: Nah, not really. Can you just give me the postcode for your favorite one? Sentence13: Please pick one and book it for 8 people. Sentence14: The pleasure was all mine, have a great day! Question: Who has spoken the sentence 8? (A) User (B) System
Output: 


Answer: (A) User