You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I want to book a flight ticket from LAS to DFW. Can you find a flight ticket for me?

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

USER: Thank you. Ok, my planned trip dates are on Jan 11 and return on Jan 13.

ASSISTANT: Please share the connection limit.

USER: I need a single connecting flight.

ASSISTANT: May I know your name?

USER: Yes, I am Emma Baker.

ASSISTANT: Is there any other specifications?

USER: No, thanks for asking.

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: Please proceed with the ticket booking.

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

USER: Ok, not an problem. Thank you for your help.

ASSISTANT: Thank you for reaching us.