You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I be at your service today?

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

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: Oct, 30 and Nov, 1 are my travel dates.

ASSISTANT:  Do you prefer any stopover in between journey?

USER: I need to depart at evening time with connecting flight.

ASSISTANT: Please help me with your name for booking.

USER: Larry Rodriguez here.

ASSISTANT: Sorry, no flights are available on your journey routes.

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

ASSISTANT: Thank you for choosing us.