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 have 5, 2 Indian, a Chinese, a British, and a gastropub. Any of them tickle your fancy? Sentence2: No, that's it. Thank you for your assistance today, you have been very helpful! Sentence3: It is called cambridge book and print gallery. Sentence4: Hello, what expensive restaurants do you know of in the East part of town? Sentence5: Can you tell me about the indian places? Are any of them expensive? Sentence6: I need to find an attraction. Sentence7: Good news, the entrance fee is free! And the phone number is 01223694264. Can I help you with anything else today? Sentence8: Cambridge book and print gallery is in the west, not the east. Are you sure that was the name of the attraction? Sentence9: Have a great night. I'm glad to be of assistance! Sentence10: Yes, I just need the entrance fee and phone number Sentence11: Sitar Tandoori is my favorite. They are indeed expensive. Would you like to book a table there? Sentence12: There are several attractions in the east part of town. Are you interested in a specific type, such as a museum or outdoors? Sentence13: Their phone number is 01223249955. Would you like to make a reservation? Or can I help with anything else? Sentence14: What is their phone number? Question: Who has spoken the sentence 13? (A) User (B) System
Output: 


Answer: (B) System