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: Can I get a taxi to take us from the gallery to the restaurant? Sentence2: I'm looking for a museum with a restaurant. Sentence3: Yes please. I need the reference number too. Sentence4: Do you know of any restaurants in the centre of town that serve lebanese food? Sentence5: Yes I'd like one for Sunday for 19:15, there will be 8 of us. Sentence6: Great. Please get me their address. Sentence7: Booking was successful. The table will be reserved for 15 minutes. Reference number is : H570Z3KN . do you have any other questions Sentence8: Is it moderately priced? Sentence9: Yes. Ali Baba is moderately priced. Would you like me to make a reservation for you? Sentence10: No, that will be all thank you. Sentence11: Ali Baba is in the centre of town serving lebanese food Sentence12: Ok, a white audi will pick you up at cafe jello gallery and bring you to Ali baba by 19:15. You can contact the driver at 07646811518. Anything else? Sentence13: will you need to have all eight of you seated at the same table? Sentence14: How does the Cafe Jello Gallery sound? It is located in the west and does not have an entrance fee. Sentence15: You're welcome. Thank you. Sentence16: Cafe jello gallery can be found at 13 magdalene street. Is there anything else I can do for you? Question: Who has spoken the sentence 5? (A) User (B) System
Output: 


Answer: (B) System