Q: 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
customer: Hello. 
 agent: Hello, how may I aid you? 
 customer: Myself Daniel Brown. I would like to attend seminar, so can you help me booking flight from MSP to SFO? 
 agent: can I know your travel dates? 
 customer: My travel starts from 05/05 to 05/07. Provide flight with connection 1. 
 agent: Basing on your details, I got a flight with flight number 1005 with price 100 and connection limit 1. Can I proceed? 
 customer: Ok, proceed to booking. 
 agent: Your booking is done. 
 customer: Thank you for your services. 
 agent: Most welcome.
A:
book