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: Hi. 
 agent: Hello. How can I aid you? 
 customer: I would like to attend live music concert at Charlotte, can you please reserve fight ticket from OAK to CLT? 
 agent: Sure, may I know the planned travel dates? 
 customer: Sure, my planned travelling dates are Jul, 31 and Aug, 02 respectively. 
 agent: Do you have any connection limit for this journey? 
 customer: I prefer for direct flight in my journey. 
 agent: Please provide me the name. 
 customer: John Scott here. 
 agent: Sorry, there are no flights are available for your desired intent. 
 customer: Ok, not an issue.Thank you for your information. 
 agent: Thank you for reaching us.
[A]: no_flight


[Q]: customer: Hello. 
 agent: Hello, how may I help you? 
 customer: Can you help me to book a flight ticket from DFW to JFK? 
 agent: Sure, could you please provide your travelling dates to search for the flight? 
 customer: Ok, my dates are Oct 4th and 6th respectively. 
 agent: May I know your preferable depart and return journey timings? 
 customer: No specifications regarding the flight timings. 
 agent: Do you have any class preferences? 
 customer: Ok, please book a economy class flight. 
 agent: There is a connecting flight 1017 of Southwest airlines, can I proceed? 
 customer: Ok, please book a ticket on the name Angela Johnson. 
 agent: Ok, your booking is done. Thank you for choosing us, have a happy journey. 
 customer: That is good, thank you for assisting me.
[A]: book


[Q]: customer: Hi, Dorothy Collins here. 
 agent: Hello, how can I be your helping hand? 
 customer: I would like to visit Puget sound at Seattle, WA - SEA. Can you please book a ticket from AUS? 
 agent: Sure, can I know your travel dates? 
 customer: My trip dates are 11/08 and 11/10. 
 agent: We found a flight on southwest airline, flight number 1011 with the fare of 100. 
 customer: Please book this. 
 agent: Your ticket has been booked. 
 customer: Thank you for assisting me. 
 agent: Thank you for choosing us.
[A]:
book