instruction:
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
question:
customer: Hello. 
 agent: Hello, how may I aid you today from my end? 
 customer: Stephen Hernandez here. I am looking a flight from BOS to SEA, can you help me? 
 agent: Sure, I am here to help you out. Please provide me your trip dates. 
 customer: My planning dates are 03/16 and 03/18. 
 agent: Please wait a moment. 
 customer: Sure. 
 agent: Here is a flight with 2 stops and airfare is 100 in 1002 Spirit airlines, can I proceed with it? 
 customer: I need a direct flight. 
 agent: Let me check with your request. 
 customer: Ok, take your own time. 
 agent: Sorry Stephen, there is no direct flight with your travel dates in your route. 
 customer: It's ok, thank you for checking. 
 agent: Thank you for reaching us.
answer:
no_flight


question:
customer: Hello, I am Thomas Young. 
 agent: Hello Thomas Young. How can I help you today? 
 customer: I have planned a trip with my friends, can you help in the process of booking ticket. 
 agent: Sure, can you provide me your travellings details? 
 customer: My travelling is from San Francisco, CA - SFO to Detroit, MI - DTW. My travelling dates are on 04/24 to 04/26. 
 agent: Sure, wait for a moment, I will revert you. 
 customer: I need a single connection with price of 5000. Sure,. 
 agent: Thanks for waiting. We could not find any flights for your specification. 
 customer: OK, thank you for the information. Thank you. 
 agent: Thank you for reaching us.
answer:
no_flight


question:
customer: Hello, I am Patrick Hall. 
 agent: Hello, how can I assist you today? 
 customer: My dream is to study in New York university.So, to join in university I need a connecting flight from San Francisco, SFO. 
 agent: Ok, may I know your travelling dates please? 
 customer: I will go on 10/18 and return on 10/20. 
 agent: What is your origin airport code for this journey? 
 customer: I have mentioned it already. 
 agent: Please wait for a moment. May I know your destination airport code? 
 customer: My destination is EWR, New York. 
 agent:  Please wait for a moment. 
 customer: Sure. 
 agent: Flight-1022 by Hawaiian airlines is available for you with 1 connection at the price of 200, shall I book it for you? 
 customer: Ok, you can go with booking. 
 agent: Booking done. 
 customer: Thanks for assisting me. 
 agent: Thank you for reaching our services.
answer:
book