You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I am Nancy Taylor, having a plan to visit my brother's house at Atlanta this weekend. Can you please book me a ticket from PHL to ATL?

ASSISTANT: Sure Nancy, I am here to help you but I need your travel dates to search best flight for you.

USER: My preferable journey dates are from 12/05 to 12/07.

ASSISTANT: Please wait for a minute, let me check is there any flight available for you.

USER: Sure, take your own time.

ASSISTANT: Based on your request there is a flight with airline AA and flight number 1015 with connection 1.

USER: That's ok for me. Please book my ticket with this airlines.

ASSISTANT: Your ticket has been booked with your name and price of the flight is 100.

USER: Thank you for your help.

ASSISTANT: My pleasure, have a safe trip.