You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Brian Taylor here.

ASSISTANT: Is there any help you are excepting from us?

USER: I want to reserve my ticket from LAS to PHX, can you please help me in this?

ASSISTANT: Sure, I am here to serve you with that. May I know your journey dates?

USER: Sure, my preferable dates of travel are from 12/14 to 12/16. I want a direct flight.

ASSISTANT: Sorry for the trouble, there are no flight's based on your connection limit.

USER: Ok, no problem.

ASSISTANT: Thank you for choosing us.

USER: Thank you for your service.