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: It should be in the centre, , how about one that is in the type of architecture Sentence2: What sort of information do you need? Sentence3: DO you need free wifi or parking? Sentence4: Thank you! When you are done I will need the reference number. Sentence5: great saint mary's church is at market square Sentence6: The post code is cb23pq. Anything else? Sentence7: We are visiting and hoping to find some great entertainment in the area. Sentence8: Is there a price range you'd like? There are many moderate prices guesthouse, and 2 cheap ones. Sentence9: You're welcome, have a good day. Sentence10: Booking was successful at the Avalon. Your reference number is : 0BMY3Z94 . Can I help you with anything else? Sentence11: No those dont matter to me. Sentence12: What about the post code? Sentence13: There are actually 9 guesthouses on the north that are moderately priced. Would you like me to select one? Sentence14: There are a few, do you have a certain area in mind? Sentence15: The Centre has some wonderful architecture. There are several options that do not charge an entrance fee and one that charges 2 pounds. Do you have a preference? Sentence16: I'd prefer the moderate one, what is the name of it? I will need a reservation for 7 people for 2 nights starting Wednesday. Sentence17: I will work on booking this for you and be back with you shortly. Sentence18: Hi, I am looking for information in Cambridge. I'll be coming in the next few weeks. Sentence19: Yes please. I need it for 7 people, 2 nights and starting from Wednesday. Sentence20: Not really. What's the address and postcode for your favorite one? Sentence21: I need a place to stay - a guesthouse, I think. Perhaps in the north? Sentence22: That will be l for now, thank you very much Question: Who has spoken the sentence 16? (A) User (B) System
Output: 


Answer: (A) User