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: What is its entrance fee, phone number and postcode? Sentence2: Great, thanks! That's all the help I need for today. Have a good night. Goodbye. Sentence3: What's the phone number? Sentence4: Okay, I have 10 trains that meet your criteria. Do you have a departure or arrival time? Sentence5: I also need to know where you are travelling to. Sentence6: cb23qf. What else would you like to know about the nightclub? Sentence7: TR0757 leaves at 09:29. Would that be of interest? There area also trains every two hours on the :29 until 23:29 Sentence8: The entrance fee is 4 pounds, phone number is 01223477900. Sentence9: I will be traveling on Monday and leaving from Bishops Stortford. Sentence10: I recommend Soul Tree Nightclub. It is located on 1-6 Corn Exchange Street and has a 4 pound entrance fee. Sentence11: What is the postcode to the Soul Tree Nightclub? This sounds like a fun place! Sentence12: Yes I can. First I need more information on the day and the time please Sentence13: Hi there. I have a business trip in Cambridge coming up and I have no idea what the train schedule might be. Would you be able to help with that? Sentence14: The phone number for soul tree is 01223477900 Sentence15: it should leave after 09:15 Sentence16: Feel free to call back again for any further questions. Have a great day. Sentence17: I am looking for a nightlclub located in the centre of town, might you suggest one? Sentence18: I'll be going to cambridge. Question: Who has spoken the sentence 1? (A) User (B) System
Output: 


Answer: (B) System