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: The closest arrive time for leicester that I have is 09:06. It leaves cambridge at 07:21. How many people will be traveling? Sentence2: I have a number of places so maybe we can narrow it down. Can you tell me what area of town you would like to stay? Sentence3: The Allenbell is a guesthouse. And they are located at 517a Coldham Lane. Is there anything else I can help you with? Sentence4: There will be 2 of us. Can you please provide the reference number after you create the booking? Sentence5: I need a train departing from cambridge and should arrive by 09:15. Sentence6: No, I would just like the address and hotel type, please. Sentence7: you're welcome. its always a pleasure to serve you Sentence8: Thank you. I am also looking for a place to stay. I would like for it to have 4 star rating and free wifi. Sentence9: I'm going to Leicester on Sunday. Sentence10: I have your tickets booked. The reference number is ZJP3WID9 . Sentence11: I think allenbell would be a good choice. Would you like me to book it? Sentence12: There are several trains leaving Cambridge and arriving by 9:15, do you have a destination in mind? Sentence13: No thank you. I appreciate your help today. Goodbye! Sentence14: I would like to stay in the east, there is no need for parking. Question: Who has spoken the sentence 5? (A) User (B) System
Output: 


Answer: (B) System