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: I am looking for a attraction in the east part of town Sentence2: Sure, I can make your reservation first what day and for how many people please? Sentence3: We have a boat, two entertainment venues, and two museums here in the East. Can I get you more information on any of those? Sentence4: How about the Funky Fun house? It is in the east at 8 mercers Row, mercers row industrial estate. The post code is cb13ef. Sentence5: That will work. I'm also looking for a restaurant in the same area that is expensive. Sentence6: Which one would you suggest? Please give me the phone number, entrance fee, and the postcode. Thank you. Sentence7: It was my pleasure. Thanks for using our service. Goodbye. Sentence8: The Taxi has been booked as requested. Sentence9: I am not overly particular, what type do you have in the East? Sentence10: What type of attraction are you interested in? Sentence11: Yes, the contact number is 07511049377 and it is a blue lexus. Sentence12: Sounds good, I need a taxi and I need to leave by 4:00 so I need a reservation for 3:00 or earlier if possible. Sentence13: There are a few to choose from. The Royal Standard is a gastropub. Does that sound good? Sentence14: Alright! Thanks so much for your help! Sentence15: I need the taxi to commute between the two places on the same day. Sentence16: Can you let me know the contact number and what kind of car? Question: Who has spoken the sentence 9? (A) User (B) System
Output: 


Answer: (B) System