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 recommend Cotto. Would you like a table there? Sentence2: No thank you. Could I get the phone number and address please? Sentence3: Of course. There is no fee to enter. The address is 98 king Street, postcode cb11ln. Do you need any more info? Sentence4: Of course. The phone number for Cotto is 01223302010 and the address is 183 East Road City Centre. Is there anything else I can help you with today? Sentence5: Yes, I'm looking for a museum to go to. Sentence6: I am looking for a moderate restaurant in the centre. Could you help me with this? Sentence7: Thank you for using our services. Have a great day. Sentence8: How about british food? Sentence9: That could work. Can I get the entrance fee, address, and postcode as well? Sentence10: No, that's all I needed. Thanks! Goodbye! Sentence11: That sounds good, thank you. Sentence12: Certainly, there are 21 moderate restaurants to choose from in the centre. Are you in the mood for any particular type of food? Sentence13: Did you want that museum to be in the center of town, as well? Sentence14: There are no restaurants that serve New Zealand food in the centre of town that are moderately priced. Do you want to try a different cuisine? Sentence15: Yes, I would love to have some New Zealand cuisine if possible. Sentence16: Ok, How about the broughton house gallery? Question: Who has spoken the sentence 9? (A) User (B) System
Output: 


Answer: (B) System