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: Hi. This is Stephen Jones. 
 agent: Hello. How can I assist you? 
 customer: I am planning to travel to PHX to meet my friend,can you please help me to book a flight ticket from SFO? 
 agent: Can you please mention your travelling dates? 
 customer: I want to depart on May 14th and return on May 16th. 
 agent: Let me know your depart and arrival timings? 
 customer: I would like to Return in the morning. 
 agent: Do you want connecting flight? 
 customer: Yes, I want a single connecting flight. 
 agent: Ok, please wait. 
 customer: Sure. 
 agent: Sorry, no flights found on your route. 
 customer: It's ok,  thank you for your information. 
 agent: Thank you for connecting with us.

Answer: no_flight


Question: customer: Hello. 
 agent: Hello. How may I help you? 
 customer: I need to cancel my recent reservation, as my planned trip with my friends got cancelled. Can you please help me out? 
 agent: Ok, please mention your name to check your reservation status. 
 customer: Sure, myself Stephanie Carter. 
 agent: Thanks for your response, there is no reservation found under your name to cancel it. 
 customer: Not a big problem, anyway thank you for the information. 
 agent: Welcome Stephanie Carter. 
 customer: Thank you for searching.

Answer: no_reservation


Question: customer: Hello. 
 agent: Hello. 
 customer: I am Dennis Jackson from Houston. 
 agent: Dennis Jackson, how can I assist you? 
 customer: I would like to attend a live music concert at New York with my friends. Can you please book a flight ticket for me? 
 agent: Sure, I am here to aid you. Please provide your itinerary dates. 
 customer: I want to depart on Nov 16 and return back on 18th Nov evening. 
 agent: May I know your genesis and terminus airport codes? 
 customer: My source and destination airport codes are HOU and LGA. 
 agent: Do you have any specifications? 
 customer: Yes, I am looking for a flight with 1 connection. 
 agent: Please give me a moment to check for available flights. 
 customer: Sure. 
 agent: Sorry, no flights are available as per your requirements. 
 customer: No problem, thank you for the information. 
 agent: Thank you for reaching us.

Answer:
no_flight