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

[EX Q]: customer: Hi, I am Amanda Rodriguez. 
 agent: Hello, how may I render you? 
 customer: I would like to reserve a ticket to MCO to meet my cousin from IAD. 
 agent: Sure, let me know your travel dates. 
 customer: Please help me with booking a ticket under the price 200. I want to fly on 06/23 and will return on 06/25. 
 agent: Ok, please wait. 
 customer: Ok. 
 agent: Ok, there is an Frontier airline with flight number 1001 and price of 200 available at this moment. 
 customer: That's perfect, you can reserve. 
 agent: Your booking has been done. 
 customer: Thank you for your assistance. 
 agent: Thank you for reaching us.
[EX A]: book

[EX Q]: customer: Hello, I am Edward Williams. 
 agent: Hello Edward Williams. How can I aid you today? 
 customer: Can you please assist me in booking a flight ticket from NV-LAS to TX-AUS? 
 agent: Sure, when are you planning to travel? 
 customer: My journey dates are from 11/14 to 11/16. 
 agent: Do you need a halt? 
 customer: Yes, I need a halt in between journey. 
 agent: Thank you for your details, there are no flights found with the given details. 
 customer: That's ok, not a problem. Thanks for your information. 
 agent: Ok, thank you.
[EX A]: no_flight

[EX Q]: customer: Hi. 
 agent: Hello. 
 customer: I am Anthony Brown. 
 agent: How can I help you? 
 customer: I need to book a flight ticket from EWR to DTW, Can you please help me for booking? 
 agent: Sure, I will help you to book a flight ticket. Can you please share me your travelling dates? 
 customer: I would like to travel on 07/06 to return on 07/08. 
 agent: Please give me a moment. 
 customer: Sure. 
 agent: Sorry, no flights are available on your route. 
 customer: Ok, no problem. Thanks for your information. 
 agent: Welcome, have a nice day.
[EX A]:
no_flight