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: Um, give me a minute please Sentence2: Hi I am in the north looking for a place to stay. I'd prefer a hotel with 4 stars. Any suggestions? Sentence3: Great, thank you. I am looking for some sort of entertainment in the Centre, maybe a park. Can you help me with that? Sentence4: I can I've found botanic gardens in the centre area postcode is cb21jf and has an entrance fee of 4 pounds. will there be anything else? Sentence5: That is all, thank you for your help. Sentence6: ok thanks it is a pleasure to serve you Sentence7: No, the attraction and the hotel was everything. Sentence8: Do you need a taxi between the guesthouse and the park? I can handle that, also. Sentence9: Ok, let me know whenever you're ready. Sentence10: Yes, please. I need the reservation for 1 person for 5 nights starting on Wednesday. Sentence11: Your booking was successful for 5 days at Archway House starting on Wednesday. Your reference number is UAUOPOBP . Sentence12: The Archway House is a guesthouse in the north with four stars. It's moderately priced and includes wifi and parking. Should I book? Question: Who has spoken the sentence 9? (A) User (B) System
Output: 


Answer: (B) System