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. 
 agent: Hello. How may I assist you? 
 customer: I am planning to book a ticket from EWR to DEN. Can you please help me out? 
 agent: Sure, may I know your planned trip dates? 
 customer: I am planning to travel on July 10 and return back on July 12. 
 agent: Do you have any other requirements? 
 customer: I am looking for a connecting flight. 
 agent: Can you please share me your name? 
 customer: My name is Edwards Thomas. 
 agent: We are sorry to inform you that there is no flight found with your given information. 
 customer: That's fine, thank you for your service. 
 agent: Thank you.
[A]: no_flight


[Q]: customer: Hello, Stephanie Carter here. 
 agent: Hello Stephanie, how may I assist you? 
 customer: I want to visit PHL. Can you please book my ticket from EWR? 
 agent: Sure, let me know your travelling dates please. 
 customer: My trip dates are 09/09 and 09/11. Please make sure this flight have minimum 1 connection. 
 agent: I am sorry, there is no flight available with 1 connection. 
 customer: Ok. Thank you. 
 agent: You are welcome.
[A]: no_flight


[Q]: customer: Hi, Donald Scott here. 
 agent: Hello, how can I assist you at this moment? 
 customer: Can you please reserve me a flight ticket from LAX to AUS? 
 agent: Sure, I will help you with this. Can you please provide your journey dates? 
 customer: My travel dates are 06/03 - 06/05. 
 agent: Do you need any halt in this journey? 
 customer: Yes, I need a single connection. 
 agent: Do you have any other specification for this trip? 
 customer: No. 
 agent: Donald Scott, there are no flight services available on this route on your provided dates. 
 customer: No issues, thank you for your information. 
 agent: Thank you for utilising our service.
[A]:
no_flight