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: Hi, I am Virginia Williams. 
 agent: Hello, how may I assist you? 
 customer: I need to book a ticket with 1 connection from SEA to  PHX for visiting the Garden Hill with my family. Could you please help me in doing that? 
 agent: Sure, let me know your travelling dates? 
 customer: My travelling dates are 05/03 and return on 05/05. 
 agent: Please wait for a while. 
 customer: Sure. 
 agent: Thanks for waiting, there is a flight with your request. 
 customer: May I know the flight details? 
 agent: Flight number: 1002, airline: JetBlue and price is 100 with one connection. 
 customer: You can proceed with booking. 
 agent: Ok, your ticket has been confirmed. 
 customer: Thank you for helping me in booking a ticket. 
 agent: Thanks for contacting us.
Student:
book