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: Excellent. Can I get the entrance fee and postcode of one of them? Sentence2: The Cambridge Belfry has gotten great reviews. It's a 4-star cheap hotel in the west. Would you like to go with that? Sentence3: Does it have free parking and wifi? Sentence4: How about a college instead? Sentence5: Yes, it has free parking and internet Sentence6: Sure, 1 night and 5 people. Sentence7: No that is all thank you for all your help. Have a great day. Sentence8: I would also like to find a room in the West of town. Sentence9: It doesn't matter, whatever is available is fine. Sentence10: I have no nightclubs in that area,would you like e to look in another area? Sentence11: I will need to know how many guests are staying and for how many nights Sentence12: queens' college is found in silver street and entrance fee is 2.50 pounds. post code is cb39et Sentence13: Can you book that starting for Thursday? Sentence14: Thank you and enjoy your stay in our lovely city! Sentence15: on what price range do you want your Hotel? Sentence16: Booking was successful. Reference number is : DGQ74G0U . Is there anything else I can assist you with? Sentence17: Good Evening, I guess I am in charge of the planning the trip to Cambridge. I am looking for some places to go when we arrive. Sentence18: Why yes, there are five colleges actually. Sentence19: What area of cambridge will you be visiting? Sentence20: We will be mainly in the West part of town. Are there any nightclubs around that area? Question: Who has spoken the sentence 11? (A) User (B) System
Output: 


Answer: (B) System