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: Thanks! I've also heard about a little place in town called Autumn House. What can you tell me about it? Sentence2: Yes thursday and at 17:50. Sentence3: It'll be for 7 people, 2 nights, starting saturday. Sentence4: Can you book a room for me? Sentence5: I have you booked for 2 day for 7 people. Sentence6: i want to sight see in cambridge and want to see architectural stuff Sentence7: Autumn house is a guesthouse in the east area. Despite being rated at 4 stars prices are cheap compared to others. Interested in more info? Sentence8: Happy to be of service, and enjoy your time in Cambridge! Sentence9: That will be all. Thanks for your help. Sentence10: What area is all saints church located? Is there an entrance fee? Sentence11: What is the reference number for that booking? Sentence12: Your Reference number is 8J8MEI06 . Can I do anything else for you? Sentence13: sure for how many and when? Sentence14: I have some great sights for you. All saints church, great saint mary's church, holy trinity church, little saint mary's church and the old schools. Sentence15: All Saints Church is on Jesus Lane in the center of town. There is no entrance fee. Sentence16: Can you give me the number of days and people you would like to stay, please. Question: Who has spoken the sentence 6? (A) User (B) System
Output: 


Answer: (A) User