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. May I know your good name, please? 
 customer: I am Jerry Garcia, can you help me to find a flight? 
 agent: Sure, Jerry. May I know your source and destination airport codes? 
 customer: I would like to travel from CLT to LAX. 
 agent: Can you provide me your planned dates of journey? 
 customer: My travelling dates are 12/31 and 01/02. 
 agent: Give me a minute, I will check the availability of flights. 
 customer: Sure. 
 agent: AA airline is providing service on that route with flight-1012 on your planned dates. 
 customer: Proceed. 
 agent: 200 is your travelling charge, your ticket has been booked successfully. Have a safe journey. 
 customer: Thank you for your help. 
 agent: Thank you for using our service.
Student:
book