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 help you today? 
 customer: Due to urgent work, I would like to change my reservation to some other date, can you please help me out with that? 
 agent: Sure, we are here to help you. 
 customer: Thank you for your positive response. 
 agent: May I know your good name please? 
 customer: Sure, my name is Christine Rodriguez. 
 agent: Please wait a minute. 
 customer: Ok. 
 agent: Sorry, there is no reservation on your name in our database. 
 customer: It's ok no problem. Thank you for your information. 
 agent: Thank you for opting us.
[A]: no_reservation


[Q]: customer: Hello. 
 agent: Hello, How can I assist you? 
 customer: I am Pamela Martinez. 
 agent: May I know your travelling details? 
 customer: Actually I need to cancel my reservation. Can you please help me? 
 agent: Sure, Please wait a minute. 
 customer: OK. 
 agent: Sorry, No reservation found on your name. Thank you for choosing us. 
 customer: Its k cool. Thank you.
[A]: no_reservation


[Q]: customer: Hello. 
 agent: Hello. How can I assist you? 
 customer: I need to travel HOU and DFW, can you please reserve flight ticket? 
 agent: Sure, can I know the travel dates please? 
 customer: My travelling dates are Apr,29 and May,01. 
 agent: May I know your name please? 
 customer: Myself Emma Young. 
 agent: Do you have any requirements? 
 customer: My return time should be in the evening. 
 agent: Ok, wait a moment please. 
 customer: Make sure I need a connecting flight. 
 agent: Sorry, there are no flights available as per your request. 
 customer: Oh! Sad to hear that. Anyway, I will find another alternative to complete my journey. 
 agent: Thank you for approaching us. 
 customer: Thank you for the information.
[A]:
no_flight