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

customer: Hello. 
 agent: Hello. How can I assist you? 
 customer: I am Nicholas Martinez. I am travelling from Denver-DEN to Philadelphia-PHL to meet my parents. 
 agent: Sure, can I know the travel dates please? 
 customer: My departure dates is on 06/08 and return on 06/10. 
 agent: Ok, wait a moment please. 
 customer: Ok. 
 agent: There is a flight in JetBlue airline with price 100, can I book it? 
 customer: Please proceed for booking. 
 agent: Your ticket has been booked with flight number 1018. 
 customer: Thank you for your help. 
 agent: You are welcome.
book

customer: Hi,. 
 agent: Hello,. 
 customer: Myself Angela Hill. 
 agent: How may I abet you? 
 customer: I just want to cancel my recent reservation because my husband is suffering from Diabetics and his Blood Pressure was totally high. So, to take care of him I want to cancel it. Can you help me with this? 
 agent: Sure, I am here to help you. 
 customer: Thank you. 
 agent: Please wait a while, I will check the reservation list and get back to you with the status. 
 customer: Sure, I will wait for your response. 
 agent: Thank you for being so patience. 
 customer: My pleasure. 
 agent: I have checked in the reservation list to cancel your ticket, but couldn't find any reservation in your name in the data list. 
 customer: That's fine, not an issue. 
 agent: Thanks for your approach. Hope to serve you again. 
 customer: Thanks for your prompt response. 
 agent: Have a nice day.
no_reservation

customer: Hi. 
 agent: Hello, how may I be of your help? 
 customer: I just want to change an existing reservation due to my appointment with client got post pone. Can you help me? 
 agent: Sure, to proceed further may I know your good name please? 
 customer: I am Richard Miller. 
 agent: Ok, please wait a minute. 
 customer: Sure. 
 agent: Thank you for waiting. Unfortunately there is no reservation found by your name. 
 customer: Ok, no issue. Thank you. 
 agent: Thank you for opting us and have a good day.
no_reservation