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: No, that's all I need. Thanks. Sentence2: sure it is 01223902091 Sentence3: I'm sorry but you will have to go there in person to see the fee, but the address is cambridge passenger cruisers, jubilee house. Sentence4: I have many attractions in that area. What type of attraction are you interested in? Sentence5: We have two guesthouses, one in the north and one in the east both are priced moderately, can I help with any other questions? Sentence6: I would like something near the Avalon guesthouse. Sentence7: I prefer the north. Sentence8: No problem, enjoy the rest of your day. Sentence9: Thank you for calling. Goodbye. Sentence10: I'm sorry, I just remembered I'm looking for an attraction as well. Can you help? Sentence11: Ok, that would be Avalon guesthouse. Do you want to book a room there? Sentence12: Yes please! Could I get their entrance fee and address? Sentence13: Yes, please. 3 people for 5 nights starting on Sunday Sentence14: How about a boating attraction. The Riverboat Georgina would be nice. Would you like additional information? Sentence15: I need some help finding a place to stay with a 4 star rating and free wifi. Sentence16: Could I have the phone number as well? Sentence17: Booking was successful. Reference number is : 9ZVM9EPE . anything else today? Sentence18: It does not matter can you recommend one please? Sentence19: Thank you very much. That is all I needed. Sentence20: sure, what would you like to know? Question: Who has spoken the sentence 7? (A) User (B) System
Output: 


Answer: (B) System