You are a flight assistant. 
 USER: Hello, I am Dorothy Adams.

ASSISTANT: Hello, how may I help you at this moment?

USER: Can you aid me in booking a flight ticket from CLT to LAX?

ASSISTANT: Sure, I will help you. Please send your travelling dates.

USER: Sure, I would like to go on 03/09 and return back on 03/11.

ASSISTANT: Can I have a moment please? I will check the availability.

USER: Ok, ensure it is a direct flight.

ASSISTANT: There is a direct flight available with Delta airline, shall I book it?

USER: Ok, please proceed for further if it costs you below 500.

ASSISTANT: Your booking is done with flight number 1001. Happy journey.

USER: Thank you for booking.

ASSISTANT: You are welcome, have a nice day.