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

ASSISTANT: Hello, how may I aid you?

USER: I am planning to visit the Twin Peaks in San Francisco. Can you book me a flight ticket with a single connecting flight?

ASSISTANT: Sure, can you please provide your trip dates?

USER: I start on 11/04 and return on 11/06.

ASSISTANT: Do you have any price limit?

USER: The price limit is 1000.

ASSISTANT: May I know your airport codes?

USER: My source is GA - ATL and destination is CA - SFO.

ASSISTANT: Please wait a moment, I will check and revert you.

USER: Sure.

ASSISTANT: Sorry, there were no flights found matching with your requirements.

USER: OK, no problem. Thank you for the information.

ASSISTANT: Thank you for choosing us, have a good day.