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. Amy Jones here. 
 agent: Hello, how can I support you? 
 customer: Can you book a flight ticket for my airport codes that is from SFO to PHX? 
 agent: May I know your trip dates? 
 customer: The trip dates are from 18 June to 20 June. 
 agent: Do you need any break in my journey? 
 customer: Yes. 
 agent: Is there any class preference? 
 customer: No. 
 agent: Do you have any other requirements? 
 customer: No, that is it. 
 agent: May I know your name please? 
 customer: I am Amy Jones. 
 agent: There is a connecting flight with fare of 100 and 1020 flight number. Shall I proceed? 
 customer: You can book the flight ticket. 
 agent: Your seat has been reserved with Frontier airlines in economy class. 
 customer: Thank you. 
 agent: Thank you for choosing our services.
[EX A]: book

[EX Q]: customer: Hello. 
 agent: Hello, how can I assist you for the day? 
 customer: I would like to meet my old friend at Las Vegas, please help me in booking a ticket from IAH to LAS. 
 agent: When you are willing to travel? 
 customer: My planned travel dates are on Mar 11 and Mar 13. 
 agent: Do you have any connection limit? 
 customer: I need a direct flight for this trip. 
 agent: May, I know your good name? 
 customer: My name is Jessica Wilson. 
 agent: Do you have any other specifications? 
 customer: No more specifications, please find the availability of flights. 
 agent: Sorry, we found no flights on your given dates. 
 customer: Ok, no issues. Thank you for your information. 
 agent: Thank you for reaching us.
[EX A]: no_flight

[EX Q]: customer: Hello, I am Ruth Adams. 
 agent: Hello, how may I help you today? 
 customer: Owing to an emergency I need to cancel my reservation, can you please help me? 
 agent: Sure, please wait I will get back to you. 
 customer: Ok. 
 agent: Thanks for waiting, we have not found any flight reservation on your given name. 
 customer: Ok, no issue. 
 agent: Thank you for choosing us. 
 customer: Thank you for your information. 
 agent: Thank you.
[EX A]:
no_reservation