You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Q: Sentence1: Alright I will connect you so you will get tickets for the event. Sentence2: Thank you for contacting Cambridge TownInfo centre. I enjoyed helping you. Goodbye. Sentence3: is there anything else I can help you with today? Sentence4: What is the address? Sentence5: I would go with kettle's yard since it is free. Would you like more information? Sentence6: I am also wanting to find out some info on a restaurant called The Gardenia. Sentence7: Thank you so much. Sentence8: Their address is Castle Street, cb30aq. Will there be anything else I can assist you with today? Sentence9: I have you leaving at 16:15 and arriving at 16:45. It'll be a white volvo and the number is 07193127325 Sentence10: I am looking for a museum on the west side of town. Sentence11: Yes, I will need a taxi to commute between the to places. Sentence12: There are 7 museums in the west. Sentence13: i would like to make a reservation there for Wednesday. There will be 6 people. Sentence14: No thank you that will be all Sentence15: Event? I want to book a table at a restaurant please. Sentence16: Let's shoot for 16:45 please. Sentence17: What time would you like your reservation? Sentence18: That is a great Mediterranean place. What would you like to know about it? Sentence19: Booking was successful. The table will be reserved for 15 minutes. Reference number is : KF2WIGAS . Can I help with anything else today? Sentence20: Which one is the cheapest? Question: Who has spoken the sentence 17? (A) User (B) System
A:
Answer: (B) System