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: Great that was all I needed for today, thank you! Sentence2: To be honest, I don't care about the price range. Can you make a suggestion? Sentence3: Yes, I'll need a taxi between the two places as well. Sentence4: Okay, no problem. I've booked you a white toyota to pick you up there, and the contact number is 07058618818. Anything else today? Sentence5: Sure, what time and where would you like to be picked up? Sentence6: You're welcome, and have a great day. Sentence7: Wow, I have 10 different chinese restaurants in the centre of town. Let's try to narrow it down. Do you have a price range you would like to stay in? Sentence8: The entrance fee is free. Is there anything else I can help you with? Sentence9: Im looking for places to go in town that shows architecture in the centre part of town Sentence10: Okay, that sounds neat! Is there an entrance fee? Sentence11: How about little saint mary's church at little saint mary's lane? Sentence12: I would like the taxi to leave the restaurant by 14:45. Sentence13: Yes, I am looking for a Chinese restaurant close by. Sentence14: I would recommend Rice House in Centre. It is cheap but oh man their food is fantastic! They are at 88 Mill Road City Centre. Can I help more? Question: Who has spoken the sentence 9? (A) User (B) System
Output: 


Answer: (B) System