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 can I help you? 
 customer: Can you please help me in booking my flight ticket from DCA to EWR? 
 agent: Sure, may I know your travelling dates? 
 customer: My planned travel dates are April 01-03. 
 agent: Do you have any connection limit? 
 customer: I prefer to fly in connected flight. 
 agent: Any other preferences? 
 customer: I am looking for not to fly in low cost airlines. 
 agent: May I know your name? 
 customer: Stephanie Hernandez is my name. 
 agent: Sorry, there are no flights found with your details. 
 customer: Ok, no issues. Thank you for your service. 
 agent: Thank you.
[A]: no_flight


[Q]: customer: Hi. 
 agent: Hello, how may I be at your service today? 
 customer: Due to some entrepreneurship meeting, I am going to change my existing reservation. 
 agent: May I know your name please to check the status of your reservation? 
 customer: Sarah Lopez here. 
 agent: Thank you. Please stay online for a while, I will check your reservation status and let you know. 
 customer: Sure. 
 agent: Sorry, there is no reservation matching with your name in our portal to make changes further. 
 customer: No problem, thanks for the information. 
 agent: Thank you for reaching us.
[A]: no_reservation


[Q]: customer: Hello. 
 agent: Hello. How can I help you? 
 customer: Next week there was a wedding reception, of my friend to be held in New York. But unfortunately it got cancelled. So, please cancel my flight ticket? I am Susan Allen. 
 agent: Let me check your reservation details, Susan Allen. 
 customer: Ok. 
 agent: There is no reservation found under your name. 
 customer: Thank you. 
 agent: Thank you for choosing us.
[A]:
no_reservation