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.
agent: Hello, how may I assist you?
customer: I am Edward Hernandez, I am willing to have a trip in the month of December in Orlando city for two days. Can you help me with my flight ticket booking from Boston?
agent: Sure, may I know your planned travel dates please?
customer: Thank you for reacting positively, my planned travel dates are 12/02 and 12/04.
agent: Can you please share your source and destination airport codes?
customer: Sure, my nearest airports as my source and destination are BOS and MCO respectively.
agent: There is a flight available on your requested dates from Frontier airlines with 1 connecting flight.Shall I confirm your booking?
customer: You may confirm my reservation with this flight.
agent: Your ticket is booked with flight 1002.
customer: Thank you for our quick response.
agent: You are welcome.
[EX A]: book

[EX Q]: customer: Hello.
agent: Hello. How can I help you today?
customer: I am Dorothy Turner, I am going to Washington DC to take tour of White house with my family. Help me to find a flight of price 1000.
agent: Could you please provide me airport codes?
customer: I will fly from NC-CLT to DC-IAD. Please find a flight with single connection.
agent: Sure. To check with availability of flights, I need your travel dates.
customer: My travel dates are for depart is 06/29 and returning on 07/01.
agent: Please be online, I will revert you with flight details.
customer: Ok.
agent: Thanks for your time, Delta airline is available with flight number 1015. Can I process the booking?
customer: Yes.
agent: Ok, Your ticked is confirmed.Thanks for reaching us.
customer: Thanks for your service.
[EX A]: book

[EX Q]: customer: Hello.
agent: Hello, how may I help you?
customer: I want to change my destination airport code in my existing reservation, can you please help me out?
agent: Sure, I am here to help you for this. May I know your name please?
customer: Sure, my name is Nicholas White.
agent: Just a moment, let me check your reservation status in our database.
customer: Ok, take your time.
agent: Sorry for inconvenience, no reservation is found under your name.
customer: It's ok, thank you for the information.
agent: Thank you very much for contacting our agency.
[EX A]:
no_reservation