You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: Can you please reserve me a flight ticket from LAS to ORD?

ASSISTANT: May I know on which dates you are willing to travel?

USER: My trip dates are 03/29 - 03/31.

ASSISTANT: Do you need any break in between your journey?

USER: I need a single connection.

ASSISTANT: Is there any other specifications regarding your journey?

USER: My depart time should be in the evening.

ASSISTANT: Can I know your name for booking your flight ticket?

USER: Nicole Moore here.

ASSISTANT: Thank you for the information, please wait for a while.

USER: Sure.

ASSISTANT: Sorry, no flights are available in this route as per your requested dates.

USER: No issues, thank you.

ASSISTANT: Thank you for reaching us.