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: OK, I have a grey Volvo picking you up at the riverboat georgina and heading to the acorn guest house at 10:15. The contact number is 07727986161. Will that be all? Sentence2: You could check out the riverboat georgina, located with the cambridge passenger cruisers at the jubilee house. Sentence3: Thank you, and have a great day! Sentence4: Sure. The address is 154 Chesterton Road, the phone number is 01223353888 and it is a 4 star hotel. Anything else I can help with? Sentence5: I am looking for something to do on the north side of town. Sentence6: Very well. I also want to book a taxi to take me there, to leave by 10:15. Sentence7: I don't need a reservation right now. Just the address, postcode, and number of stars for that hotel, please. Sentence8: The part of town doesn't matter, and I don't need free parking. Which would you recommend? Sentence9: yes, that is all good bye Sentence10: The acorn guest house is nice. Would you like to book a reservation there? Sentence11: The address is cambridge passenger cruisers, jubilee house. Sentence12: There are 17 offerings. What part of town are you interested in? Sentence13: Moderate price range. Sentence14: Sounds good. What's the address? Sentence15: Also, can you find me a place to stay, in moderate price and includes free wifi? Sentence16: Is there a price range you would like to look for? Question: Who has spoken the sentence 4? (A) User (B) System
Output: 


Answer: (A) User