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

Q: customer: Hello, I am Brandon Jackson. 
 agent: Hello. How may I assist you today? 
 customer: I need to book a flight ticket to attend my sister baby shower function. 
 agent: Ok. Let me know your journey details. 
 customer: I would like to travel from DFW to SEA. My journey dates will be on 11/25 to 11/27. 
 agent: Please wait for a minute, I will check and let you know the details. 
 customer: Sure. 
 agent: Thanks for waiting. You have AA airline with flight number 1009 of price 300 with double connection limit. Can I proceed with this? 
 customer: I need only one connection limit. Please do not proceed for booking. 
 agent: Ok. 
 customer: Thank you. 
 agent: Thank you for reaching us.

A: no_reservation
****
Q: customer: Hello, Stephanie Carter here. 
 agent: Hello Stephanie, how may I assist you? 
 customer: I want to visit PHL. Can you please book my ticket from EWR? 
 agent: Sure, let me know your travelling dates please. 
 customer: My trip dates are 09/09 and 09/11. Please make sure this flight have minimum 1 connection. 
 agent: I am sorry, there is no flight available with 1 connection. 
 customer: Ok. Thank you. 
 agent: You are welcome.

A: no_flight
****
Q: customer: Hi. 
 agent: Hello, how may I address you? 
 customer: I am Katherine Edwards. I need to book a flight ticket from DFW to AUS, Can you please help me for booking? 
 agent: Sure, on what dates are you willing to travel? 
 customer: I would like to travel on 08/19 08/21. 
 agent: Is there any class preference? 
 customer: I am comfortable with any class. 
 agent: How much fare are you expecting? 
 customer: I can pay up to 500. 
 agent: Ok, please wait. 
 customer: Sure. 
 agent: Thank you for waiting, I regret to inform you that there are no flights obtained on your journey dates to book a flight ticket. 
 customer: Ok, no problem. Thanks for your information. 
 agent: Thank you for picking us.

A:
no_flight
****