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, it has free internet and parking. Sentence2: That sounds fun! Could you tell me the phone number, area, and entrance fee for cafe jello gallery? Sentence3: Yes, I have found the Cambridge Belfry that is in the west part of town. Can I book this hotel for you? Sentence4: I am having an issue booking your hotel room for you. Sentence5: Lots of exciting things include 13 in the west area, and type of place in mind? Sentence6: Okay I was able to book you. Your booking was successful. Your Reference number is : 91SNR681 . Sentence7: No, it's a hotel. Would you like to book your stay? Sentence8: Do they have free wifi as well as parking? Sentence9: You know, the part of town doesn't so much matter, I'd really like to find a guesthouse with free wifi and parking. Sentence10: Yes please try again. Sentence11: Can I recommend the cafe jello gallery. Sentence12: the cambridge belfry is in the cheap prise range would you like a booking? Sentence13: Great. How many people in your party, and what day will you be arriving? Sentence14: I'm thinking a museum. Sentence15: Yes please. Sentence16: Hello, can you recommend a cheap hotel with free parking, please? Sentence17: Entrance is free. The phone number is 01223312112, and the area is the west. Sentence18: Is this a guesthouse? Sentence19: How about switching it to 8 people for 1 night? Sentence20: There will be 8 of us for 2 nights starting saturday Sentence21: I think that's all I need for today. Thanks. Goodbye. Sentence22: I'm sorry that doesn't seem to be available. Would you like me to double check for a guesthouse? Sentence23: Have a great trip. Goodbye. Sentence24: Are there any fun places to go ? Question: Who has spoken the sentence 5? (A) User (B) System
Output: 


Answer: (B) System