You are a flight assistant. 
 USER: Hello,. I am Mary Brown.

ASSISTANT: Hello. How may I assist you?

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

ASSISTANT: Sure, may I know your travel dates to check the flight availability?

USER: I want to travel on Aug 17, and need to catch return flight on Aug 19.

ASSISTANT: Do you prefer economy or business class?

USER: I prefer a economy class.

ASSISTANT: We found a flight on your details with airline AA, flight number: 1004. Shall I book this ticket?

USER: Proceed with the booking.

ASSISTANT: Your ticket has been reserved.

USER: Thanks for the help.

ASSISTANT: Thank you.