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: You can reach The Copper Kettle at 01223365068. Their postcode is cb21sj. Is there anything more I can help with today? Sentence2: There are four great restaurants that match your criteria. I highly recommend the copper kettle located at 4 Kings Parade City Centre. Would you like me to book a table? Sentence3: That sounds great, can I please get the phone number and postcode? Sentence4: I am looking for something to do in the centre area of town. I was thinking maybe a nightclub. Sentence5: Their phone number is 01223519224 and postcode is cb23hx. Is there anything else I can help you with? Sentence6: Have a nice day. Sentence7: Have a nice day. Sentence8: Where are you going? I can help you book a taxi once you give me your destination Sentence9: What is the phone number and postcode there? Sentence10: There are many moderately priced restaurants in the city centre. Is there a type of cuisine you would like to try? Sentence11: Yes I am interested in British food. Sentence12: I'm traveling between the restaurant and nightclub. I need to leave the nightclub by 1:00. Sentence13: I'll also need a taxi. It should leave The Fez by 1:00. Please include the contact number and car type. Sentence14: There are 5 nighclubs in the Centre. May I suggest The Fez Club? Sentence15: I'm looking for a moderately priced restaurant in the Cambridge city centre. Sentence16: I have booked that taxi look for a yellow honda. The contact number is 07354152897. Question: Who has spoken the sentence 2? (A) User (B) System
Output: 


Answer: (A) User