Detailed Instructions: 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. 
 agent: Hello. 
 customer: Pamela Jones here. 
 agent: How can I help you Jones? 
 customer: I am a model, I have to reach Los Angeles for my photo shoot. So please book my ticket from Dallas. 
 agent: Sure, I will help you with that. Please provide me know your journey dates. 
 customer: My itinerary dates are 05/07 and 05/09. 
 agent: Sure, can I know your airport codes please? 
 customer: My genesis and terminus airport codes are DFW and LAX. 
 agent: Ok, please wait for a moment. 
 customer: Sure. 
 agent: We find a flight ticket in Spirit airline and 1016 as flight number with 1 connection. 
 customer: Please book my ticket. 
 agent: Jones, your ticket is booked with price 200. 
 customer: Thank you. 
 agent: Thank you for choosing us.
A:
book