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.
agent: Hello, how can I assist you?
customer: I am Matthew Clark and I want to book a flight ticket to attend live concert which is going to held on AZ-PHX.
agent: Ok, can I know your journey dates and origin?
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agent: Ok, please hold on I will check the availability of flights and revert to you.
customer: Ok.
agent: We are glad to inform you that we found a flight matching your requirements. UA airline, flight number 1021 and price of 100 with one connection.
customer: You can proceed with this airline.
agent: Sure. Your flight has been processed.
customer: Thank you for contating us.
agent: Thanks for reaching us. Have a good day.
customer: My boarding is from IL-ORD and my travelling dates are from 11/16 to 11/18.