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: There are many places to go in the centre. What type of activity would you like? Are you interested in activities that are free or cost money? Sentence2: El Shaddi meets all your criteria, how many people will I be making a booking for? Sentence3: As long as it is a guesthouse in town centre, and has free parking with 0 stars. I'd like to book for 3 nights starting Wednesday. Sentence4: Thank you for using our service! Sentence5: Sure, Club Salsa is located at 1 Station Road, CB12JB, and there is a 5 pound entrance fee. Sentence6: Are there any places to stay in the centre of town? Sentence7: I am also looking for places to go in the same area. Sentence8: We have 5 places to pick from in the centre of town, any other preferences? Sentence9: It should be a guesthouse, have 0 stars and include free parking. Sentence10: nah, i just realized i hate sports. a lot. how about nightclubs? Sentence11: You are in luck, we have 6 nightclubs. I'd recommend Club Salsa. Sentence12: I have the el shaddai located at 41 warkworth street. Would you like to make reservations? Sentence13: Great your stay is reserved! Reference CC8X41QU . Is there anything else I can help with? Sentence14: Great, thanks so much, that's all I need! Have a great day! Sentence15: I would like that for 4 people for 3 nights starting on wednesday please. Sentence16: I don't have any multiple sports attractions in the centre, but I have one in the East. Would you like to hear about it? Sentence17: Can I have the address, postcode, and entrance fee Sentence18: Mutliple sports would be nice. Question: Who has spoken the sentence 6? (A) User (B) System
Output: 


Answer: (A) User