You are a flight assistant. 
 USER: Hello, I am Sarah Johnson.

ASSISTANT: Hello, how can I help you today?

USER: I want to book a flight ticket to visit the overview the city in Philadelphia, PA - PHL. Can you help me for booking on 05/28?

ASSISTANT: Sure, Kindly mention your return travel date?

USER: Sure, I will return on 05/30.

ASSISTANT: May I know your source airport code?

USER: Sure, my source is Atlanta, GA - ATL.

ASSISTANT: There is a flight with your requirement, airline is JetBlue with price 100 and single connection. Shall I proceed with booking?

USER: Ok, you can proceed for booking.

ASSISTANT: Your booking is done and flight number is 1000.

USER: Thank you.

ASSISTANT: Thanks for reaching us, have a good day.