Given the task definition and input, reply with output. 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.

customer: Hello, Jessica Smith here. 
 agent: Hello Smith, how can I assist you? 
 customer: I want to book a flight ticket from DTW to DFW, can you help me? 
 agent: Sure, I am here to help you. Could you please provide me your travel dates? 
 customer: My travelling dates are from 09/21 to 09/23. 
 agent: Flight-1027 is available with UA airlines and the ticket fare is 100 only. Is it ok for you? 
 customer: Ok, you can proceed with booking my reservation. Thank you for helping me. 
 agent: Smith, your ticket is booked successfully. 
 __ 
 agent: Thank you for choosing us and have a nice day.

customer: Most welcome.