You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, may I know your name?

USER:  I am James Carter want to travel to Las Vegas for a short vacation to meet my sister.

ASSISTANT: James, how may I help you today? Ok, can I know your journey dates?

USER: My travel dates are 03/16 and 03/18.

ASSISTANT: Ok, do you want a break in between your journey?

USER: Yes I need  a halt.

ASSISTANT: Please help me with your exact airport codes.

USER:  I will depart from TX-DFW to NV-LAS.

ASSISTANT: Ok, let me check with the availability.

USER: Ok.

ASSISTANT: James, there is a flight with fare 200 from Delta airline and flight number 1002. Are you fine with that?

USER: Ok, confirm my booking.

ASSISTANT: Shall I proceed with the booking? Your booking is confirmed, have a safe journey.

USER:  Thank you for booking.

ASSISTANT: Thank you for contacting us.