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: Okay, the post code is cb43ax and the phone number is 01223351880. Sentence2: What times do they have available. Sentence3: It would be easiest if you would pick a time. Sentence4: What are some expensive british restaurants to dine at? Sentence5: Unfortunately, there are no British restaurants in the north that are expensive. Would you like mt o look in another are or try a different cuisine? Sentence6: Sure, when would you like the reservation for? Sentence7: Yeah, I'm looking in the north. Sentence8: sure, there's one there called restaurant two two. Sentence9: Actually, I don't need to book a time right now, I just need the postcode and phone number for the time being. Sentence10: I hope you have a great stay in town. Goodbye. Sentence11: How about expensive French restaurants in the north? Sentence12: Thank you. I am also looking for places to visit in town. I think a college would be nice. Could you recommend one? Sentence13: Sure, are you looking in a certain area? Sentence14: That's all I needed today. Thanks! Sentence15: Can I also have their phone number and address? Sentence16: Sure, Christ's College would be a good choice. It's in the centre of town and does not have an entrance fee. Would you like more information? Sentence17: Of course. The phone number is 01223334900 and the postcode is cb23bu. Can I help you with anything else today? Sentence18: Can you make me a reservation please and send the reference number? Question: Who has spoken the sentence 16? (A) User (B) System
Output: 


Answer: (A) User