You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you today?

USER: Can you help me to book a flight ticket from ORD to LAS?

ASSISTANT: Sure, I am here to help you with that.May I know your planned travelling dates please?

USER: My travel dates are Aug 02 and Aug 04.

ASSISTANT: For further proceeding, may I know your good name please?

USER: I am Joshua Moore.

ASSISTANT: If you have any specifications please let me know.I will check availability of flights according to that.

USER: I prefer connecting flight on this route.

ASSISTANT: Sorry Moore, there is no flight found on your travelling dates.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for reaching us.