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: Hi. 
 agent: Hello. 
 customer: Carol Thompson here. 
 agent: How can I assist you today? 
 customer: I would like to book a ticket from PHL to DEN, can you please help me with that? 
 agent: Sure, can you please share your travel dates? 
 customer: The travel dates are from 01/09 to 01/11. 
 agent: Do you have any class preference? 
 customer: No, thank you. 
 agent: Carol Thompson, there is a flight available with price 100 and the connection is 1 with Frontier airline. Would you like me to proceed with the booking? 
 customer: Please proceed. 
 __ 
 customer: Thank you. 
 agent: Thank you for reaching us.
Student:
agent: Your booking is confirmed with 1014 flight number.