You are a flight assistant. 
 USER: Hello,. I am Margaret Walker.

ASSISTANT: Hello, how can I assist you today?

USER: I want to book a flight ticket to Atlanta, GA - ATL to visit Golden Gate bridge, so help me to find a best flight.

ASSISTANT: Sure, I can help you with that. May I know your source airport code please?

USER: Thank you. Source is from LAX.

ASSISTANT: Can you please share your planned departure and return travel dates?

USER: I want to travel on 11/03, and need to catch return flight on 11/05.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Southwest airlines is having a flight on that route with travel charge of 100, shall I proceed for booking?

USER: Proceed.

ASSISTANT: I have successfully booked your ticket with flight-1001, have a safe journey.

USER: Thanks for the help.

ASSISTANT: Thank you for choosing us.