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, thank you so much! Now I just need to find a place to eat. Sentence2: Their address is 41 warkworth street, cb11eg. Their phone number is 01223327978. They do indeed have free parking. Sentence3: There is a guesthouse located in the north and a guesthouse located in the centre, do you have a preference of area? Sentence4: I have many different options for restaurants. Do you have a preference of the area, price range, or type of food? Sentence5: It should be in the cheap price range Sentence6: You are welcome, enjoy your stay in Cambridge. Sentence7: Sorry, I actually won't need it booked after all. I only want to know if they have free parking and also the phone number and address there please. Sentence8: I would prefer the centre please. Sentence9: Sounds fine. Could you make a reservation for 4 at 11:45 on Wednesday? I will need the reference number too Sentence10: Yes can you please book that? Sentence11: I have the el shaddai guesthouse. Should I go ahead and book that now? Sentence12: for how many people do i book and for how long? Sentence13: I have made the reservation. Your reference number is FZT238P9 . Is there anything else I can help you with? Sentence14: I want to find a zero star rated hotel. Sentence15: No thank you that will be all. Sentence16: There are quite a few Chinese restaurants in that area. How about Golden House? Sentence17: Interestingly enough, I have 3 of those! Do you have a certain area in mind? I have places in the north and centre. Sentence18: Let's look for a cheap place. Question: Who has spoken the sentence 7? (A) User (B) System
Output: 


Answer: (B) System