You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: Can you help me in booking a flight ticket from DEN to ATL?

ASSISTANT: Sure, please share me your trip dates.

USER: I want to travel on 05/04, and return on 05/06.

ASSISTANT: Do you need direct flight or connecting flight?

USER: I need a connecting flight.

ASSISTANT: For booking, we need your good name. Please mention it.

USER: I am Sandra Williams.

ASSISTANT: May I know your class preferences ?

USER: I am comfortable with any class.

ASSISTANT: We found a AA airlines and 1020 is flight number with a fare of 200. Shall I proceed?

USER: Proceed with the booking.

ASSISTANT: Your ticket is confirmed with an economy class.

USER: Thanks for the help.

ASSISTANT: Thank you for communicating with us.