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
Problem:customer: Hi, I am Jessica Moore. 
 agent: Hello, how may I help you today? 
 customer: I need to travel to Philadelphia PHL to enjoy long trips with friends. Can you make a reservation with fare 200? 
 agent: Sure, when you are willing to travel? 
 customer: Sure, I need to fly on 08/01 and 08/03. 
 agent: May I know your source code please? 
 customer: Sure, my boarding point is Washington IAD. 
 agent: Ok, please wait. 
 customer: Sure. 
 agent: Thanks for waiting, we found connecting flight 1013 in Frontier airline with fare of 100. 
 customer: Please proceed to book. 
 agent: Your ticket has been booked on your name. 
 customer: Thank you for your help. 
 agent: Thank you for reaching us.
Solution:
book