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, please. I need a reservation for Saturday, 4 nights and 2 people. Sentence2: Yes, thank you! Sentence3: Ya I am also looking for a hotel to stay. Would prefer one that doesn't have wifi if possible. Sentence4: Unfortunately, all the hotels in town have internet available. Is there a particular price range your looking at? Sentence5: There are five architecture attractions, all located in the center of town. There are four churches and one school. Sentence6: Awesome, tell me more about the church closest to me right now and get me their phone number please Sentence7: Booking was successful. Reference number is : 3U32C59A . Can I help with anything else? Sentence8: Did you need me to book a room at the Cambridge Belfry for you? Sentence9: I appreciate you finding wifi for me! Sentence10: Great. Thank you for calling and have a great day. Goodbye! Sentence11: All saints church is located at jesus lane and has free entrance. Their phone number is 01223452587. Can I be of any further assistance? Sentence12: How about the cambridge belfry located at back lane cambourne? Sentence13: Wifi will be fine then. Just something cheap and basic will be good. Do you know of such a place? Sentence14: Thank you for using our services. Have we met all of your needs today? Sentence15: I would like to find some place to go in town where I can look at architecture. Can you help? Sentence16: No that's great, thanks for your help. Question: Who has spoken the sentence 5? (A) User (B) System
Output: 


Answer: (B) System