Teacher: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
Teacher: Now, understand the problem? Solve this instance: customer: Hello. 
 agent: Hello. 
 customer: Ronald Nelson here. 
 agent: How may I aid you? 
 customer: I am a movie producer, I have to promote my new movie at San Francisco. So please book my ticket from Seattle. 
 agent: Sure, may I know your airport codes? 
 customer: My genesis and terminus airport codes are SEA and SFO. 
 agent: Help me with the trip dates? 
 customer: My itinerary dates are 02/15 and 02/17. 
 agent: We found a flight in an airline JetBlue with 1024 number having a single connection price of 300. Shall I proceed? 
 customer: Please proceed to book my ticket. 
 agent: Your flight ticket has been reserved. 
 customer: Thank you for your service. 
 agent: Thank you for reaching us.
Student:
book