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: thanks. the reference number is 0KSZQNWL Sentence2: On the East side please, in the same area as the restaurant Sentence3: They both have internet. Sentence4: Sounds great! May I please have the postcode? Sentence5: Which area would you like to stay in? Sentence6: I also need a place to stay and would like to fins a guesthouse with a star rating of 4. Sentence7: Might I suggest the Autumn House. It is cheap and in the east. 4 star rated and they offer free parking and wifi. What day for your reservation? Sentence8: not really. just book it for 6 people at 15:00 on monday. Get me a ref number please. Sentence9: great, i have 6 options for you! do you need parking or wifi? Sentence10: Sure! It's cb58rs . Is there anything else I can do for you? Sentence11: That's all I need today thanks for all the help. Sentence12: I have several restaurants that would work. Do you have a price range? Sentence13: Ill take the one in the East,can you book it for me? Sentence14: You are very welcome. Please reach out to us again, if we can be of further service. Good-bye. Sentence15: I need a restaurant in the east. Sentence16: I'm impartial to both, but would like to know if they have or don't have internet available. Question: Who has spoken the sentence 4? (A) User (B) System
Output: 


Answer: (A) User