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: Nope, that should be all for today, thanks! Sentence2: You're welcome. Have a good time! Sentence3: Can you book me a taxi as well? Sentence4: I want to go from the Allenbell to the Cafe Jello Gallery. I want to leave the museum by 23:00. Sentence5: Sure, what time would you like to leave and where from? Sentence6: Does it also have free wifi? Sentence7: There's 7 museums in the west and I highly recommend the cafe jello gallery. Would you like more information? Sentence8: Hello, i'm looking for a cheap hotel in the cambridge area close to local attractions. I don't need internet or parking. Can you help? Sentence9: The cafe jello gallery is at 13 magdalene street, postcode cb30af. Phone number 01223312112 Sentence10: I don't show any parks in the west. Would you like to try another attraction? Sentence11: That is perfect, I was looking for free parking as it was. Sentence12: its a 4-star. from which day should i book? Sentence13: Yes it does have Wifi. Would you like me to book you a room? Sentence14: Thank you that's all i need! Sentence15: All the lodging I have found offers internet and parking. Would that be ok? Sentence16: no problem. I have changed your booking. Your new taxi would be a black volkswagen and its contact number is 07276925880. Is that everything? Sentence17: Can you specify your destination? Sentence18: Can you look for a nice museum instead? Sentence19: I'm looking for a place in the cheap price range with free parking. Sentence20: I want to leave the museum by 23:00. Sentence21: Is there a particular part of Cambridge you are hoping to stay in? Sentence22: Yes, book one night please. What is the star rating by the way? Also what parks are in the west area? Sentence23: Actually, I'm not quite ready to book yet. But I am looking for parks in the west part of town. What are my options there? Sentence24: I'd like the postcode and phone number of that gallery please. Sentence25: Booking completed! The booked car type is a yellow skoda and your contact number is 07590574334. Can I help you with anything else? Sentence26: I think the Allenbell would be a good fit. Would you like a reservation? Question: Who has spoken the sentence 9? (A) User (B) System
Output: 


Answer: (B) System