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 amend you today? 
 customer: I am Jason Young. I want to book a ticket to meet my old friends, can you please help me that? 
 agent: Sure, we are here to aid you. 
 customer: Thank you. 
 agent: Where you want to go? 
 customer: I want to go from Charlotte, CLT to New York, JFK. 
 agent: Kindly assign your preferred dates of travelling? 
 customer: I would like to leave between 05/24 and 05/26. 
 agent: Thanks for your details. Based on your request we found a plane 1002 of Southwest airline with a connecting flight. Shall I proceed? 
 customer: Yes, please book this ticket. 
 agent: Reservation is done. 
 customer: Thank you so much. 
 agent: Thank you for availing us.

A: book
****
Q: customer: Hi. 
 agent: Hello, how can I guide you today? 
 customer: Can you please help me in reserving a ticket to reach Houston with fare 1000? 
 agent: Sure, I am glad to help you. 
 customer: Thank you. 
 agent: Help me with your airport codes please? 
 customer: My airport codes are from LAS to IAH. 
 agent: On which dates you want me to book a flight ticket for you? 
 customer: Please book a ticket on 01/22 and need to return on 01/24. 
 agent: Thanks for your details, we found a connecting flight with flight number 1019 in Hawaiian airline and fare is of 100. Shall I reserve it? 
 customer: You can reserve it. 
 agent: May I know your good name please? 
 customer: I am Stephen Davis. 
 agent: Your ticket has been confirmed. 
 customer: Thank you for your extendable support. 
 agent: Thank you for choosing us.

A: book
****
Q: customer: Hello. 
 agent: Hello. 
 customer: My business meeting has been cancelled. So, I would like to cancel my reservation which is under my name. Can you please help me with that? 
 agent: Sure, please mention your name for further process. 
 customer: Sure, my name is Richard Garcia. 
 agent: Please wait, I will get back to you. 
 customer: Sure, take your time. 
 agent: I found a reservation under your name. 
 customer: Ok, please cancel my reservation. 
 agent: Ok, your reservation has been cancelled. 
 customer: Thank you for your help. 
 agent: Thank you, have a good day.

A:
cancel
****