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 think I would prefer the Hobsons House. Can I get the postcode and phone number? Sentence2: Thank you for contacting Cambridge InfoCentre today! Enjoy your stay. Sentence3: There are 202 trains departing from Cambridge that day. What time would you like to leave? Sentence4: Yes I have a Wednesday train from Leicester to Cambridge that departs at 14:21 and arrives at 16:06. Would you like me to book that for you? Sentence5: Hello, I am looking for a guesthouse that has free parking, can you help me with that? Sentence6: Yes, I'd like to make the booking for 8 people. Sentence7: I just need it to be in the west and it should include free wifi. Sentence8: Is there a specific area you are looking at and what price range would you like? Sentence9: There are 107 trains leaving after 13:45. If you give me your destination I can narrow down the choices. Sentence10: Just to clarify, that train is from Cambridge to Leicester. I've made reservations for 8, reference no. HG6Y42HX . You can pay at the station. Sentence11: I found two locations Finches Bed and Breakfast and Hobsons house, which one would you prefer? Sentence12: I'm heading to leicester. Sentence13: The address for Hobsons House is 96 Barton Road and the postcode is cb39lh, would you like me to book a reservation? Sentence14: Not at this time. I am also looking for a train leaving from cambridge on wednesday. Sentence15: The train should leave after 13:45. Sentence16: thank you for your help Question: Who has spoken the sentence 8? (A) User (B) System
Output: 


Answer: (A) User