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: is there anything further I can help you with? Sentence2: I'm interested in find a place to see in the centre of the town. Sentence3: Yes, could I have that train ID please? Sentence4: i also need a train that departs from london liverpool street Sentence5: No that is all I needed. Thank you. Sentence6: What day and time would you like to depart? Sentence7: No thank you. I have everything I need for now. Sentence8: Certainly. The train id is TR8530. Would you like to book at ticket? Sentence9: You can depart from London Liverpool street to Cambridge on Saturday at 17:39 for 13.28 pounds. The trip will take 88 minutes. Did you have any further questions? Sentence10: I recommend castle galleries located at unit su43, grande arcade, saint andrews street. Their phone number is 01223307402. Is there anything else? Sentence11: I'd like to leave on saturday after 17:15. Sentence12: Not really. What's the address and phone number for your favorite attraction? Sentence13: We have lots to see! Anything specific you had in mind? Sentence14: thank you and enjoy your stay in cambridge! Question: Who has spoken the sentence 5? (A) User (B) System
Output: 


Answer: (B) System