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: Not at this time. Thank you for the information! Good-bye Sentence2: Yes i would love to hear more information about them. Thank you. Sentence3: Yes, are there any good Indian restaurants? Sentence4: Hmm, I was looking for Fusion type food, are there any that have that? Sentence5: You're welcome. Please let us know if you need assistance with anything else. Thanks! Sentence6: Hi there, I'm hoping you can help me find a hotel in the south of Cambridge. Sentence7: I have the Pizza Hut that is moderately priced in the South and also Restaurant Alimentum that serves modern European food. Any interest you? Sentence8: I also need a place to dine that is in the same area and price range as the hotel. Sentence9: There are guesthouses available in the South Cambridge area moderately priced that have free wi-fi and parking. Would you like to hear more about them? Sentence10: The Lensfield hotel, which is expensive is the only hotel in South Cambridge. Will this work for you? Sentence11: Sure, the aylesbray lodge guest house is located at 5 mowbray road. Can I be of any further assistance today? Sentence12: Sure. May I have the address? Sentence13: Alright the aylesbray lodge guest house is a 4 star guest house. Does that interest you? Sentence14: no, I need a moderately priced place that doesn't need have free wifi or parking in the area of south, thank you Sentence15: Absolutely! The Taj Tandoori is located at 64 Cherry Hinton Road Cherry Hinton. Their postcode is cb17aa. The phone number to reach them is 01223412299. Would you like a reservation? Sentence16: Great can I get their phone number, address, and postcode Sentence17: There is one expensive Indian restaurant in the South: Taj Tandoori. Would you like to make a reservation? Sentence18: I'm sorry, there isn't. Can I provide you information on a different type of cuisine? Question: Who has spoken the sentence 9? (A) User (B) System
Output: 


Answer: (B) System