You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.

Example Input: Sentence1: I have a train leaving at 18:11. Will that do? Sentence2: You're welcome. Have a nice day. Sentence3: You train has been booked. Total fee is 19.6 GBP which is payable at the station. Your reference number is 5PVB9XYJ . Sentence4: Arrival time does not matter, just leave after 17:30 Sentence5: Milton Country Park is in the north and has free admission. Sentence6: Is there a time you would liek to arrive by? Sentence7: Hello, I'm looking for a place to go in the north. Could you suggest some places? Sentence8: That would work. Can you book that please? Sentence9: Perfect! That is all I needed. Thank you for the help. Goodbye! Sentence10: I need to book for two people and I need the reference number. Sentence11: Can I get the phone number please? Sentence12: Absolutely. Their phone number is 01223420060. Is there anything else I can assist you with? Sentence13: I'm leaving Kings Lynn on Wednesday. Sentence14: Yea I also need a train that goes to cambridge and should leave after 17:30. Sentence15: How many people would you like to book? Sentence16: What day will you be traveling, and where would you like to depart from? Question: Who has spoken the sentence 2? (A) User (B) System
Example Output: Answer: (A) User

Example Input: Sentence1: Is there one close to the area I booked the restaurant reservation? Sentence2: I have found 9 guesthouses that meet that requirement. Is there a certain area you would prefer to stay in? Sentence3: No, I would just like the star rating, postcode, and phone number of the establishment. Sentence4: Can I have the reference number please? Sentence5: How about a cheap one? Sentence6: Unfortunately there are no guesthouses that are in the expensive price range. Sentence7: Sesame Restaurant and bar number 01223358899 and it's address is 17 Hills Road City Centre. Sentence8: I have booked your request for 7 people at the Sesame Restaurant and Bar, located at 17 Hills Road City Centre for 6PM on Monday. Sentence9: That takes care of everything. Thank you for the help. Sentence10: i have found 29 hotels that meet your criteria, what price range are you looking for? Sentence11: Yes certainly. However, there seems to be an error. I was unable to book that time. Is there another time I could book for you? Sentence12: Is 5PM available instead? Sentence13: I would like to make an appointment for 7 people at 6PM on Monday. Sentence14: Great. I'm also looking for a place to stay. I need a hotel that includes free Wi-Fi and free parking Sentence15: Do you have an expensive guesthouse? Sentence16: Alright, have a nice day! Sentence17: Yes I have the Alexander Bed and Breakfast in the city center. Would you like me to book it for you? Sentence18: The Alexander Bed and Breakfast is a 4 star guesthouse. The postcode is cb12de and the phone number is 01223525725. Is there anything else I can help you with? Sentence19: Hello, I would like information on the Sesame Restaurant and Bar. Sentence20: Yes it is. I have booked a table for you at 17:00 on Monday for 7 people. The reference number is CZ3JGGJP . Question: Who has spoken the sentence 5? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: I will also need a taxi to get to the boat from the restaurant. Sentence2: Not at this time. Can I have the address, phone number, and postcode? Sentence3: I need to arrive by 14:15 Sentence4: Yeah I'd like to go somewhere in town, like a boat or something. Sentence5: When would you like to arrive by? Sentence6: I can recommend the hotpot. Would you like help making a reservation? Sentence7: If you are interested in boating, I have 4 different venues available. I have some in the north, east and centre of town. Which do you prefer? Sentence8: I was able to book you a black volkswagen, phone number is 07123207292 Sentence9: Thank you for using our system! Sentence10: The Riverboat Georgina may interest you then it is located at Cambridge Passenger Cruisers, Jubilee House in the North with a phone number of 01223902091. Can I help you more? Sentence11: I am looking for a place to dine! I would prefer chinese food located in the north. Sentence12: Thank you, that's all I need today. Sentence13: There are 3 Chinese restaurants in the north. One is in the moderate price range and two are in the expensive price range. Do you have a preference? Sentence14: I would like one in the expensive range please Sentence15: The address is 66 Chesterton Road Chesterton, the post code is cb41ep and the phone number is 01223366552. Is there anything else I can help you with? Sentence16: How about one in the north? Question: Who has spoken the sentence 9? (A) User (B) System
Example Output:
Answer: (B) System