You are a flight assistant. 
 USER: Hello.

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

USER: I am planning to book a ticket form JFK to LAS. Can you please help me out to book a ticket for me?

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

USER: I am planning to travel on Feb 12 and return back on Feb 14.

ASSISTANT: Do you have any connection limit preference?

USER: Yes, I am looking for a direct flight.

ASSISTANT: May I know your specific depart and arrival timings for this trip?

USER: No.I am ok with any timings.

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

USER: No.

ASSISTANT: Can you please provide your name for documentation purpose?

USER: Yes, I am Samuel Turner.

ASSISTANT: Samuel Turner, we regret to inform you that there are no direct flight services are available on this route on your provided dates.

USER: That's fine, thank you for your service.

ASSISTANT: Thank you for contacting us.