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 will be by myself and staying for 5 nights starting on Wednesday Sentence2: There are actually 3 hotels with a 0 rating. Would you like to book one of them now? Sentence3: The booking was unsuccessful, would you like to try a different hotel? Sentence4: I can try to book at the el shaddai for you. How long is your stay and for how many please? Sentence5: Yes I have one hotel and one guesthouse in the centre of town. Sentence6: Yes, same price range. Sentence7: Okay great. Please call us again. Sentence8: What sort of rates do they charge? Sentence9: Is one of them in the centre of town? Sentence10: Can we go ahead and get the cheap one please Sentence11: Okay. I got you in at The Alexander and your reference number is UKJ7T0FW . Sentence12: That is all I need, thank you. Sentence13: One is in the cheap price range and one is in the moderate price range. Sentence14: I have an odd request, I am looking for a place to stay with a 0 star rating. Question: Who has spoken the sentence 6? (A) User (B) System
Output: 


Answer: (A) User