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 would like to travel on Wednesday by train departing from Kings Lynn to Cambridge. But want to arrive by 11:45. Sentence2: Can you tell me if Ashley Hotel is located in the South and does it include free parking? Sentence3: That's it for today, thank you Sentence4: Yes, there are several. What day would you like to travel? Sentence5: Hi, do you know about trains that run from King's Lynn? Sentence6: I do not have anything with that exact criteria. Shall I change it? Sentence7: The address for The Cambridge Belfry is Back Lane, Cambourne. Can I help with anything else today? Sentence8: for how many ? Sentence9: They are located in the North and has free parking. Sentence10: I would prefer the cheaper one please. Sentence11: just one, please Sentence12: I have two hotels that meet your criteria. One is in the expensive price range and the other is in the cheap range. Do you have a preference? Sentence13: Okay, great. I've made you a booking on the TR8044. Your reference number is VIG3VTPJ . The total fee is 9.8 GBP which can be paid at the station. Sentence14: Yes, Can you look in the west please? Sentence15: how about ashley hotel? Sentence16: Okay, I need the address of a hotel in the south please with free wifi and parking. Sentence17: Thanks! I also need a hotel (not a guesthouse!) with free wifi, please. Sentence18: Thanks for using our services, goodbye! Question: Who has spoken the sentence 10? (A) User (B) System
Output: 


Answer: (A) User