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: I'll be commuting between the restaurant and the college. I want to book at taxi to pick me up at the restaurant by 12:30. Sentence2: I am also interested in finding out information about local colleges. Do you recommend any to visit? Sentence3: We have discussed a restaurant and a college, did you have a hotel you wished to stay at? Sentence4: I can suggest ask located at 12 Bridge street city centre. Would you like to make reservations? Sentence5: Sure, where will you be headed? Sentence6: You should check out the downing college on regent street. Do you want me to get you their phone number? Sentence7: Yes I would like to eat Italian food. Sentence8: cb21uf. Is there anything else I can do to assist you? Sentence9: Between the restaurant and the hotel. Sentence10: Glad to have been of help. Thank you for using the Cambridge TownInfo centre. Have a great day Sentence11: No, that's all I needed. Thank you for your help. Have a great day. Sentence12: I would like to book a taxi now please. I need to leave the restaurant by 12:30. Are there any available? Sentence13: A grey Tesla will pick you up, contact number 07587024658. Can I help you with anything else today? Sentence14: I'm looking for a restaurant that is cheap and is in the centre. Can you help me? Sentence15: Where you interested in any particular type of cuisine? I have some restaurants like that including: Indian, Chinese, and Italian. Do you have a preference? Sentence16: their post code is cb21dq. it is located in regent street. phone number is 01223334860. Sentence17: Yes please. I would like their postcode, phone number, and address. Sentence18: No, please give me their postcode instead Question: Who has spoken the sentence 5? (A) User (B) System
Output: 


Answer: (B) System