You are a flight assistant. 
 USER: Hi, I am Carolyn Moore.

ASSISTANT: Hello, how may I support you today?

USER: I want to book a flight ticket with price under 500. Can you please help me with it?

ASSISTANT: Sure, please share your airport codes?

USER: Airport code is DFW.

ASSISTANT: May I know your travelling dates?

USER: Travelling dates are 09/16 and 09/18.

ASSISTANT: Ok, please wait for a moment.

USER: Ok.

ASSISTANT: Thanks for waiting, we found a connecting flight with fare of 100 in Delta airline. Shall I proceed for booking?

USER: You can proceed with booking.

ASSISTANT: Your ticket has been booked with 1007 flight number.

USER: Thanks for the help.

ASSISTANT: Thanks for choosing us, have a nice day.