Teacher:In this task, you're given a dialogue between a customer and a flight booking agent with a gap in the conversation. Your job is to find the answer of the previous dialogue. Avoid using irrelevant extra information while creating the answer. The answer should be relevant to the question before the blank. If you fill the blank with a question, it should have an answer from the agent in the given dialogue. Fill the gap marked with underline.
Teacher: Now, understand the problem? Solve this instance: customer: Hello, I am Brandon Martin. 
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 customer: I would like to fly with the direct flight from Atlanta to attend a client meeting in San Francisco, can you help me to book a economy class ticket? 
 agent: Sure, may I know your source and destination airport codes? 
 customer: I would like to start from Atlanta, GA-ATL to reach San Francisco, CA-SFO. 
 agent: Ok, when would you like me to book a flight ticket? 
 customer: I need to depart on 11/28 and my return date will be on 11/30. 
 agent: Ok, How much you can afford for a flight ticket? 
 customer: I can pay up to 500 for the flight ticket. 
 agent: Ok, please wait for some time. 
 customer: Sure. 
 agent: We found a Jet Blue airline with fare of 100 matches your travelling schedule. Shall I proceed with booking? 
 customer: If it is a direct flight, please proceed with the booking. 
 agent: Sorry,  we could not find a direct flight at this moment. 
 customer: No issues, I'll choose any alternate way to reach my destination. Thank you for your information. 
 agent: Thank you for reaching us.
Student:
agent: Hello, how may I serve you at this moment?