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 you help me find a hotel called city centre north b and b please? Sentence2: And for how many people? Sentence3: What day and time would you like? Sentence4: Yes, it's a guesthouse in the north part of town with cheap prices. Do you want me to book it for you? Sentence5: i would like to book a table for the same day at 17:15 Sentence6: Could you reserve a table at Hakka for me? Sentence7: Just two please. Sentence8: No, there are not. The only vietnamese restaurant is located in the west. Sentence9: Alright, have a great day! Sentence10: The booking was successful, your reservation number is OOMOE6L0 . Is there anything else I can help you with? Sentence11: You are all set for your reservation. The reservation number is 0CBRAMIK . Sentence12: There are 3: Hakka, Golden Wok, and The Hotpot. Do any of these sound good? Sentence13: Ok that is all I needed thank you! Sentence14: Yes, are there any vietnamese restaurants in the north area of town? Sentence15: How about a chinese restaurant instead? Sentence16: yes, please. 2 people for 3 nights starting on wednesday Question: Who has spoken the sentence 1? (A) User (B) System
Output: 


Answer: (B) System