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
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Question: customer: Hello, I am Steven Scott. 
 agent: Hello, how may I serve you for the day? 
 customer: I want to change my reservation as the beer festival which I want to go got postponed. 
 agent: Ok. 
 customer: Can you please help me? 
 agent: Sure. Please wait a minute. 
 customer: Ok. 
 agent: Thanks for your time, we did not find any reservation with your name. 
 customer: It's ok, no problem. Thank you for your information. 
 agent: Thank you for availing us.

Answer: no_reservation


Question: 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.

Answer: no_reservation


Question: customer: Hello. 
 agent: Hello, how may I serve you at this moment? 
 customer: Myself Kenneth Parker, I have to attend my friend marriage at Charlotte. Can you please help me in reserving the ticket from MCO to CLT? 
 agent: Sure, I will help you. Please send your travelling dates. 
 customer: I am willing to leave on Oct 02 and again I will rertrieve on Oct 04. 
 agent: Do you have any limitations? 
 customer: I mostly prefer for single connection. Can you please check for this? 
 agent: There is a direct flight available with AA airline, shall I book it? 
 customer: Yes, please go ahead and reserve the ticket. 
 agent: Your booking is done with flight number 1026. Happy journey. 
 customer: Thank you very much for reserving the ticket. 
 agent: You are welcome, have a nice day.

Answer:
book