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: There is not. Thank you so much for all of your help. Sentence2: I have the meze bar restaurant in centre on 196 Mill Road City, cb13nf. would you like me to book this location? Sentence3: I am looking to visit a college in Cambridge and I will need to know the area, entrance fee, and phone number. Sentence4: Well I have Christ's College which is quite famous and is free to enter in the center of town. Their telephone number is 01223334900. Does this interest you? Sentence5: I am looking for a museum in the south please. Sentence6: Yes, thank you very much! We'd like a dinner reservation for two, at 18:00 please. Sentence7: Great. Thank you for contacting Cambridge Towninfo Centre. Have a great day. Sentence8: Yes, that's perfect! Thank you! I'm also looking for a restaurant in the centre of town. It needs to be expensive, as well. Sentence9: Today, if possible, but it doesn't matter. Sentence10: There are many expensive restaurants in the centre of town. Is there a particular cuisine type you would prefer? Sentence11: Sure, and what day would you like to dine? Sentence12: Great! You have a reservation at 6:00 tonight at the Meze Bar Restaurant for two people. Is there anything else I can do for you? Sentence13: I'd prefer turkish food, if at all possible. Sentence14: I'm sorry, but I'm getting an error trying to process your request. Could you please restate what you're looking for? Question: Who has spoken the sentence 7? (A) User (B) System
Output: 


Answer: (B) System