You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Elizabeth Campbell. I want to visit LAS to receive my relatives, can you please help me to book a flight from ATL?

ASSISTANT: Elizabeth Campbell, I will help you by booking the the ticket.

USER: Thank you.

ASSISTANT: Could you please let me know your journey dates?

USER: My trip dates are Mar 22 and Mar 24.

ASSISTANT: Thank you for the information. Please let me know if have any preferences on your journey.

USER: I am looking for a connecting flight.

ASSISTANT: I see there is a no connecting flight operated by AA airlines with a fare of 200. Is it okay for you?

USER: Ok, please proceed for booking.

ASSISTANT: Thank you for the confirmation. I have reserved a flight-1021 ticket for you.

USER: Thank you for your service.

ASSISTANT: Thank you for reaching us, have a happy journey.