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

[EX Q]: Sentence1: Sure. What area would you like to stay in? Sentence2: yes postcode is cb39lh Sentence3: I'd like to stay on the westside, at a place with free parking and WiFi. Sentence4: Can you help me find a moderately priced place to stay? Sentence5: There is the Hobsons House. It is nice and is a 3 star guesthouse. Sentence6: Could you give me the postcode. Question: Who has spoken the sentence 4? (A) User (B) System
[EX A]: Answer: (A) User

[EX Q]: Sentence1: I need a train for Tuesday after 12:30 Sentence2: Can I get the address to the funky house? Sentence3: Where would you like to go Sentence4: Yes, please. I'll need it booked for 5 people. Can I please have the reference number? Sentence5: TR2771 leaves at 13:29. Would you like me to book a reservation for you? Sentence6: The only multiple sports is located in the east. Can I get you information for that place? Sentence7: Booking was successful, the total fee is 50.5 GBP payable at the station .Reference number is : 38589BRC . what else can i do for you? Sentence8: They are at 8 mercers row, mercers row industrial estate, postal cb58hy, no info on entrance fee but they can be reached at 01223304705 to answer that. Sentence9: I'm looking for a place to go in the south. I'd like it to be of the type multiple sports. Sentence10: Yes, since there is no multiple sports location can you pleas find me something in the east. Sentence11: funky fun house and also cherry hinton hall and grounds are both in the east. Sentence12: I need to go from Cambridge to Bishops Stortford. Sentence13: Thank you for using our system today! Sentence14: Anything that would be entertainment. Sentence15: There are ten places in the east to pick form, any specific interest in a type of place? Sentence16: Great that's all I needed to know today, thank you. Question: Who has spoken the sentence 6? (A) User (B) System
[EX A]: Answer: (A) User

[EX Q]: Sentence1: Sure. Reference number is : TJ09LFVD . Can I help you with anything else today? Sentence2: Yes, I'm looking for a college to visit. Sentence3: how about christ's college its in the centre and free admission Sentence4: Thank you good bye. Sentence5: Then the Meze Bar Restaurant is the one for you. Would you like a reservation? Sentence6: I have three Turkish restaurants in the centre of town. Are you looking for a specific price range? Sentence7: Thank you for using our services. Have we met all of your needs today? Sentence8: An expensive restaurant would be nice. Sentence9: Your taxi reservation on a grey Lexus has been completed. You will be picked up at Christ's College and dropped off at Meze Bar Restaurant. The contact number is 07700069470 Sentence10: I'd like to find a Turkish restaurant in the center of town. Sentence11: Thank you so much!, Have a great Day! Sentence12: What time would you like to leave? or arrive by? Sentence13: Could I have the reference number please Sentence14: That's a great suggestion. Thanks. I will also need a taxi between the college and the restaurant, please. Sentence15: the centre around the same area as the restaurant do you have any suggestions? Sentence16: Do you have a part of town you prefer? Sentence17: I just need it to arrive by 12:15 for the reservation. Sentence18: Yes please, can I reserve for 6 people at 12:15 on tuesday? Sentence19: your welcome, have a great day! Sentence20: Your table for 6 has been booked on Tuesday. Can I help you with something else? Question: Who has spoken the sentence 16? (A) User (B) System
[EX A]:
Answer: (A) User