Part 1. Definition
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
Part 2. Example
customer: Hi. 
 agent: Hello. How can I help you? 
 customer: I would like to change my existing reservation as my plan to go for a holiday trip got postponed. Can you please help me with this? 
 agent: Sure, may I know your name please? 
 customer: My name is Anthony Phillips. 
 agent: Please wait a moment. 
 customer: Sure. 
 agent: Unfortunately there is no reservation found with your given name. 
 customer: Not a problem, thank you for checking. 
 agent: Thank you for choosing us.
Answer: no_reservation
Explanation: Here the customer has not asked for any booking, he just wanted to update his already booked flight, so the status would be no_reservation
Part 3. Exercise
customer: Hello. 
 agent: Hello. 
 customer: Kathleen Turner here. 
 agent: How may I assist you? 
 customer: I want to attend a Marriage in Houston. Can you please help me for booking the flight ticket? 
 agent: Sure, may I know your source and destination airport codes please? 
 customer: My airport codes are DEN and HOU. 
 agent: Can I have your planned travel dates please? 
 customer: My travelling dates are 10/30 and 11/01. 
 agent: Do you have any specifications? 
 customer: I want to return on afternoon time. 
 agent: Do you need a halt in between your journey? 
 customer: I would prefer single halt. 
 agent: I found an economy class ticket in Southwest airlines with price 200 and it is a connecting flight. Can I book your ticket? 
 customer: Please proceed for booking the flight ticket. 
 agent: Ok, your booking is confirmed with flight number 1013. 
 customer: Thanks for helping me. 
 agent: Thank you for approaching us.
Answer:
book