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: That is perfect can I have the postcode please? Sentence2: Awesome! I will also need to book a tai to go from the hotel to the nightclub. Sentence3: I just need to verify some information before I book anything. Do they still have wifi, and have the prices stayed moderate? Oh, and they are in the East, correct? Sentence4: Can you recommend me a nightclub where I can get jiggy with it? Sentence5: They are in the east, yes, and they are still considered a moderately priced guesthouse. And they also have free parking and internet. Sentence6: Thanks. Last time I stayed in Cambridge several years ago I stayed at the carolina bed and breakfast. Is it still around? Sentence7: Yes, I would like to book a taxi to leave the hotel by 11:00. Sentence8: Hello. I will be a tourist in Cambridge and I've heard there are many local attractions. Sentence9: Well, I think the jiggiest nightclub in town is the Soul Tree Nightclub, right in centre city! Plus the entrance fee is only 4 pounds. Sentence10: Yes, they are in the east, prices still moderate and they do have wifi. Is there anything else I can find out for you? Sentence11: Yes, we actually have over 79 attractions. Do you have a specific area of town or interest of attraction you are looking for? Sentence12: That is all I need today. Thank you for your help! Sentence13: Sure! The postcode is cb23qf Sentence14: I got a blue Audi for you. Their number is 07962712381. What else do you need? Sentence15: Yes, it is still around. Would you like me to book the Carolina Bed and Breakfast? Sentence16: You're welcome. Have a good day! Question: Who has spoken the sentence 12? (A) User (B) System
Output: 


Answer: (A) User