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: Thank you so much! You've been so helpful. That's all I need. Have a good day. Goodbye. Sentence2: I want to leave the hotel at 22:45. Sentence3: I'm afraid that the entrance fee is unknown. Would you like the phone number? Sentence4: A taxi has been booked. It is a grey Tesla and the phone number is 07972543757. Sentence5: No, but the finches bed and breakfast is. Can I book you a room there? Sentence6: What is their entrance fee? Sentence7: Is it a guesthouse? I'm looking for a guesthouse. Sentence8: Yes, I can do that. I just need to know when you want to leave or arrive by, please/ Sentence9: their postcode is cb30nd Sentence10: No, thanks. Could you recommend a hotel in the west with free parking? Sentence11: I actually don't need reservations just information. What can you tell me about the Finches Bed and Breakfast? Sentence12: Hi, I'm interested in getting some information about the cherry hinton village centre in Cambridge. Sentence13: OK. Would it be possible to get a taxi from the guesthouse to the sports complex? Sentence14: finches bed and breakfast is a 4 start guesthouse in the west part of town in the cheap price range with free internet and parking. Sentence15: It is a multiple sports venue on the east side of town. The phone number is 01223576412. Sentence16: The cambridge belfry is a cheap hotel, 4 star, and offers free parking and WiFi. Would you like me to book you a stay? Sentence17: Your welcome, have a great day too! Sentence18: What's their postcode? Question: Who has spoken the sentence 2? (A) User (B) System
Output: 


Answer: (A) User