You are a flight assistant. 
 USER: Hi, Donna Nelson here.

ASSISTANT: Hello. How can I help you from Global travel agency?

USER: I want to book a flight ticket from DFW to ATL, can you please help me in that?

ASSISTANT: Donna Nelson, please provide your journey dates to proceed further.

USER: I would like to fly on 03/10 and return on 03/12.

ASSISTANT: Wait a while, let me check the flights availability on this route and find a best airlines for you.

USER: Sure. Take your own time.

ASSISTANT: According to your preferences, flight 1018 of Frontier airlines available for you.

USER: Please go ahead.

ASSISTANT: Your ticket has been booked successfully on the name of Donna Nelson.

USER: Thank you very much.

ASSISTANT: Thank you for choosing our service and keep using our service in future too.

USER: You are welcome.