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, I am Raymond Rodriguez. 
 agent: Hello, how can I help you today? 
 customer: I would like to visit overview of city. can you please help me to book a ticket from DCA to MSP? 
 agent: Sure, when are you willing to travel? 
 customer: My travelling dates will be on 09/19 to 09/21. 
 agent: Ok, any other specifications? 
 customer: I need a connecting flight. 
 agent: Ok, flight- 1026, airline- UA, price- 100 with connection matches your requested details. 
 customer: You can proceed to booking. 
 agent: Ok, your ticket has been processed. Thank you for reaching us. 
 customer: Thank you.

A: book
****
Q: customer: Hello. 
 agent: Hello. How may I help you? 
 customer: I want to book a flight ticket from LAX to DTW, can you please help me? 
 agent: Sure, please share your itinerary dates. 
 customer: My trip dates are 02/28 and 03/01. 
 agent: Please hold on for a while. 
 customer: Ok, please make sure that the connection limit is 1. 
 agent: May I know your name? 
 customer: Yes, my name is Deborah Young. 
 agent: Sorry Young, no flight is available on your route. 
 customer: It's ok, thank you for searching. 
 agent: Thank you for contacting us.

A: no_flight
****
Q: customer: Hello. 
 agent: Hello. How may I serve you now? 
 customer: I am Amanda Walker, I want to cancel my ticket has my plan to visit New York for reunion which is being cancelled. Can you can my reservation? 
 agent: Sure, I will help you. Please wait a while. 
 customer: Sure. 
 agent: Thank you for your time. We found a reservation in your name and it has been cancelled. 
 customer: Ok, thank you for helping me. 
 agent: Thank you for contacting us.

A:
cancel
****