In this task, you are given a conversation between a flight agent and the customer. You are given 4 options and you need to select the goal of the conversation. It is provided as part of customer's context, which has to be one of the following: `book`: Make a new reservation, `cancel`: Cancel an existing reservation, `no_flight`: No flight found for the customer's preference, `no_reservation`: No reservation / No change / No cancellation was made in the conversation, mostly enquiring details
Q: customer: Hello. I am Benjamin Evans. 
 agent: Hello, how may I abet you? 
 customer: We planned a holiday trip at Private San Francisco City tour at San Francisco , CA - SFO. 
 agent: Sure, I would be happy to help you. Can you please provide your take off airport code? 
 customer: Can you help me to book a ticket from New York, NY - JKF. 
 agent: What are your planned trip dates? 
 customer: My trip dates are 01/06 and 01/08. 
 agent: Ok, please wait a moment, let me search a flight for you. 
 customer: Ok. 
 agent:  Thanks for your precious time. We found JetBlue airline fare of 200. Shall I proceed for booking with direct flight? 
 customer: Ok, proceed with booking. 
 agent: Your ticket has been confirmed with airline number 1003. 
 customer: Sorry I need a halt over. 
 agent: Ok, no issues. I did not proceed with the booking. Thank you for reaching us. 
 customer: Ok, Thank you for your help.
A:
no_reservation