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: Phone number is 01223902112, address- the plough, green end, fen ditton and a postcode of cb58sx. Thank you is there anything else I can assist you with? Sentence2: Can I have the phone number, address, and postcode? Sentence3: We will be dining on Thursday at 13:15, and there are 4 in my party. Sentence4: Wonderful. Can you also help me find a place to visit in the east? Sentence5: We have one boat attraction in the east. It is camboats. Sentence6: Thanks, you're so helpful! I'm all done now, bye! Sentence7: I sure can. Can I get a date and time, along with the amount of people that will be there? Sentence8: Is there a specific type of attraction you are looking for? Sentence9: I would love to visit a boat attraction Sentence10: I was able to book you a table for four at Cote on Thursday at 13:15, Reference: 8s4q3a4d . Can I assist you further today? Sentence11: Hello, I'm looking for a restaurant by the name of Cote. Can you find this for me and book a reservation please? Sentence12: You are very welcome, it's a pleasure to assist you! Goodbye! Question: Who has spoken the sentence 3? (A) User (B) System
Output: 


Answer: (B) System