You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you today?

USER: Can you please help me in booking a flight ticket from EWR to LAS?

ASSISTANT: Sure, I am here to help you. May I know your travel dates, please?

USER: Sure, my travel dates are from Sept 24 to Sept 26.

ASSISTANT: Let me know your connection limit.

USER: I need a connecting flight.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: May I know your depart and arrival timings?

USER: I would like to depart in the morning.

ASSISTANT: Do you have any more specifications?

USER: No.

ASSISTANT: Provide me your name to proceed further.

USER: William Collins here.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry, we have not found any flights running on your desired routes.

USER: Ok, no problem. Thank you for the information.

ASSISTANT: Thank you for reaching us.