You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: Could you please book a flight ticket from LAS to DTW as I want to attend a pioneer festival?

ASSISTANT: I am happy to help you, may I know your trip dates?

USER: My trip dates are Sept 20 and Sept 22.

ASSISTANT: Can I have your connection limit?

USER: I need a single connecting flight.

ASSISTANT: Are you looking for any other help from my side please?

USER: No.

ASSISTANT:  To proceed further, can I have your name please?

USER: My name is Kathleen Harris.

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

USER: Not a problem, thank you for the information.

ASSISTANT: Thanks for reaching us.