You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I guide you?

USER: I want to book a  connecting flight to watch live sports event in IL, can you please help me to book a flight ticket?

ASSISTANT: Sure, We are here to help you. Can I know your travelling dates?

USER: Sure, I intend to start on 11/11 and my return date will be on 11/13.

ASSISTANT: Please share me your airport codes.

USER: DFW and ORD are my exact airport attributes.

ASSISTANT: Is there any other specifications?

USER: No more specifications.

ASSISTANT: May I know your name?

USER: I am Mary Jackson.

ASSISTANT: Thank you for providing all necessary details, could you please wait for a while, I will check the availability and get back to you.

USER: Sure.

ASSISTANT:  We are unable to provide flight in between your journey routes due to some technical up-gradation at destination airport.

USER: That's ok, I'll choose any alternative to reach my destination. Thank you.

ASSISTANT: Thank you for choosing us.