You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what can I do for you today?

USER: Can you  please book a flight  ticket from ATL  to DFW?

ASSISTANT: Sure, please help me with your trip dates.

USER: Thank you. I have  planned my  travel dates as Dec 14 and Dec 16.

ASSISTANT: May I know your class preference?

USER: I am ok with any class.

ASSISTANT: Do you have any other requirements?

USER: I would prefer normal cost airlines only.

ASSISTANT: Can you please proceed to tell me your name?

USER: Sure, myself Debra Scott.

ASSISTANT: Delta Airlines has a connecting flight with number 1024 for fare 100, shall I proceed?

USER: I would like to depart in afternoon time so if it satisfies my criteria, you can proceed with booking.

ASSISTANT: Delta Airlines has a connecting flight with number 1002 for fare 200 which departs at 15:00 hours, shall I proceed?

USER: That is fine, please proceed with booking.

ASSISTANT: Your ticket is reserved in economy class.

USER: Thank you for your help.

ASSISTANT: Thank you for opting us and have a safe flight.

USER: Most welcome.