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: Okay I can help with that. What type of food would you like to eat and what is your price range? Sentence2: Ok, that's all I need, thanks. Sentence3: I am looking for an expensive Indian restaurant. Sentence4: Doesn't matter, as long as I leave Whale of a Time and get to India House before my reservation at 11:00. Sentence5: Great. Could I book a table for 6 people on Sunday at 11:00? Sentence6: The India House is located on the West side and offers a wide range of fine diners. Sentence7: There is a place called Whale of a Time. The phone number is 01954781018. Can I help you with anything else? Sentence8: It should be in the west. Sentence9: Thanks for the information. What area should the restaurant be in? Sentence10: Sure, what time you would like to leave by? Sentence11: I am also wondering if you can help me find an entertainment place in the west as well. Sentence12: You're all set for sunday at 11:00 for six. The reference number is 111YXDK3 . Is there anything else I can help you with? Sentence13: Hi, I am traveling to Cambridge soon. I am so excited to see some local tourist attractions. I could use some help with restaurants though. Sentence14: I have booked you a taxi to arrive at the India House by 11:00. The car driven will be a grey volkswagen and the contact number is 07207500599. Sentence15: Yes, I was also interested in booking a taxi. Could you help me with that? Sentence16: You're welcome, have a great day. Question: Who has spoken the sentence 6? (A) User (B) System
Output: 


Answer: (A) User