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

[EX Q]: customer: Hello, I am James Brown.
agent: Hello, how can I help you today?
customer: My son is giving a performance in an International competition at CO - DEN. Can you help me out with booking from NV - LAS.
agent: Sure, please help me with your travelling dates?
customer: I will leave on 04/04 and return on 04/06.
agent: Ok, any connection limit?
customer: Yes, I need a halt.
agent: Ok, please hold on a moment.
customer: Ok.
agent: Thanks for waiting, no flights found with your requested details.
customer: It's Ok.
agent: Thank you for choosing us.
customer: Thanks for the information.
[EX A]: no_flight

[EX Q]: customer: Hello.
agent: Hello, may I know your name please?
customer: Yes, myself Sandra Taylor.
agent: How can I help you?
customer: I want to book a flight ticket from DEN to DCA.
agent: May I know your travelling dates please?
customer: I want travel in the dates of 12/10 and 12/12.
agent: Sorry Sandra, there are no flights available regarding your journey.
customer: Ok, thank you for your information.
agent: Thank you and have a nice day.
[EX A]: no_flight

[EX Q]: customer: Hello.
agent: Hello. How may I guide you now?
customer: I would like to attend a meeting at Houston, please help me in booking a ticket from HOU to IAH.
agent: May I know your desired dates for this journey?
customer: My desired travel dates are on Nov 1 and Nov 3.
agent: May I know your maximum connection limit?
customer: I need a flight with single connection.
agent: Do you have any other requirements?
customer: No more requirements. Thank you for asking.
agent: Meanwhile, may I know your name please?
customer: My name is Jerry Perez.
agent: There is a flight-1018 by Frontier Airlines with 1 connection at the price of 100 in economy class with depart at 16:00 hours and return at 11:00 hours. Can I book it for you now?
customer: Ok, please book my ticket.
agent: Your ticket is successfully reserved, thank you for choosing us.
customer: Thank you for your assistance.
agent: Have a safe flight journey.
[EX A]:
book