You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you at this moment?

USER: Please reserve me a flight ticket from LAS to LGA.

ASSISTANT: Sure, I am here to help you. Can you please provide your journey dates?

USER: My travel dates are Aug 29 and Aug 31.

ASSISTANT: Do you have any connection limit preference?

USER: I prefer connecting flight for this trip.

ASSISTANT: Do you have any other specifications for this trip?

USER: No.

ASSISTANT: May I know your name to proceed further?

USER: I am Benjamin Thompson.

ASSISTANT: Benjamin Thompson, there are no flight services available on this route on your provided dates.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for contacting us.