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
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Question: customer: Hello. 
 agent: Hello. 
 customer: Kimberly Martin here. 
 agent: How can I assist you at this moment? 
 customer: I have to cancel my reservation which I have done earlier to participate in dance programme but unfortunately I have stay back here to take care of my grandmother. Can you please help me out with cancelling of my reservation? 
 agent: Sure Martin, I will help you with that. 
 customer: Thanks. 
 agent: Please wait a moment to check your reservation status. 
 customer: Ok, I will wait. 
 agent: Sorry Kimberly Martin, no reservation has found under your name to cancel. 
 customer: Anyway, thanks for the information. 
 agent: Thank you for choosing us, have a great day.

Answer: no_reservation


Question: customer: Hi. 
 agent: Hello. How may I assist you today? 
 customer: Can you please help me to change my existing reservation? 
 agent: Sure, Can you please mention your name for checking your details. 
 customer: I am Justin Lopez. 
 agent: Please wait a moment. 
 customer: Ok. 
 agent: Sorry, there are no active reservations on your given name to change. 
 customer: Ok, no problem. Thank you. 
 agent: Thank you for reaching our service.

Answer: no_reservation


Question: customer: Hi. 
 agent: Hello, how may I help you? 
 customer: I would like to meet my friend on his birthday, please help me to book my flight ticket fro, EWR to IAD. 
 agent: Sure, can I know your travelling dates? 
 customer: Sure, I want to depart on Feb 12 and return back on Feb 14. 
 agent: On which name should I reserve the flight ticket? 
 customer: My name is John Clark. 
 agent: Do you have any connection limit? 
 customer: I prefer for a single connection. 
 agent: Do you have any other specifications? 
 customer: I have to depart in the morning and I prefer for an economy class. 
 agent: Sorry, there are no flights found on given dates. 
 customer: Sad to hear that, thank you for checking. 
 agent: Thank you for reaching us.

Answer:
no_flight