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: Old Schools is on Trinity Lane, and their phone number is 01223332320. Can I help with anything else today? Sentence2: Thank you for the help! Have a nice day. Sentence3: There are a lot of attractions to see in the centre, from architecture, colleges, and museums. What kind of attractions are you looking for? Sentence4: I would like to book that for 8 people please. Can i get the reference number? Sentence5: There are a quite a few trains that leave from kings lynn. Did you want to leave on a certain day? Or arrive by a certain time? Sentence6: I'll visit anything. I don't much care the type. Sentence7: The train should leave on monday and should go to cambridge. I don't care about the arrival time. Sentence8: The TR0684 which leaves at 11:11 would work well for you. Want me to book that? Sentence9: Hi, I am looking for attractions in the centre of town. Do you have any recommendations? Sentence10: Ok. What is the address and phone number for old schools? Sentence11: How about Old Schools? It's an architecture attraction that's free. Sentence12: You have a great day too! Don't forget, when you're in a bind, call the Cambridge TownInfo centre! Sentence13: I also need a train to leave after 10:45 from kings lynn Sentence14: All booked! The reference number is M50TGTUW . Question: Who has spoken the sentence 11? (A) User (B) System
Output: 


Answer: (B) System