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: Yes I would like to book it for 4 nights for 1 person from Saturday. Sentence2: Those are all booked for the year due to events is a hotel okay? Sentence3: The Express by Holiday Inn Cambridge is the one in the east. Do you need any info on it? Sentence4: First we need to find you a attraction then we could book your taxi I think. Sentence5: No the area doesn't matter, and I know this sounds strange but I'm looking for a guesthouse with a 1 star rating. Sentence6: Could you possible check in the surrounding areas? I might as well also get a list of 2 star rated hotels. Do you mind? Sentence7: The south has cinema, entertainment, museum, nightclub, park and theatre. Which do you prefer? Sentence8: We have 23 Guesthouses that have free wifi, is there a particular area you want to stay in? Sentence9: Great, can I have the phone number and reference fee. Sentence10: I have 3 hotels that have a 2 star rating. Two are located in the north and one in the east, do you have a preference of area? Sentence11: Okay, I will work on booking this for you and be right back with you. Sentence12: I have made those reservations and your reference number is HF0MER2O . Sentence13: I would love a guesthouse but I do need wifi. Do you have any like that? Sentence14: Can you make a recommendation? Sentence15: Hi, I am planning a trip and need some help finding a place to stay. Sentence16: Okay, how about the one in the est please? Sentence17: I want to leave the hotel by 05:00. Going to the attraction. Sentence18: May i get the reference number? Sentence19: Just so I can get you the right information, are you interested in Byard art or tenpin? Sentence20: Great thanks I also need a taxi leaving the hotel by 05:00 Sentence21: I would recommend tenpin, which is an entertainment venue in the south. It's a lot of fun. Sentence22: somewhere in the south, sorry need the phone # and admission fee Sentence23: I hope you have a good trip. Have a nice day. Goodbye. Sentence24: Certainly, do you have any special requests or preferences? Sentence25: Unfortunately I don't have any information about their entrance fee but if you call them at 08715501010, they'll tell you. Will that be all today? Sentence26: Please send info on tenpin. Thanks for the help. Sentence27: OK, where are we taking the taxi to? Did we also need to book a restaurant or find an attraction? Sentence28: Thank you for the help. That's all for now. Question: Who has spoken the sentence 11? (A) User (B) System
Output: 


Answer: (B) System