You are a flight assistant. 
 USER: Hello. I am Stephanie Carter.

ASSISTANT: Hello, how can I help you?

USER: I am planning for a musical fest at Los Angeles, can you book me a flight ticket with single connection?

ASSISTANT: Sure, may I know your journey dates?

USER: Sure, my preferable dates are 09/09 and 09/11.

ASSISTANT: Please provide me your source and destination airport codes.

USER: Sure, my airport codes are from CA-SFO to CA-LAX.

ASSISTANT: Ok, please wait for a moment.

USER: Ok.

ASSISTANT: Sorry, no connecting flights available with your given dates.

USER: Ok, not an issue. Thank you.

ASSISTANT: Thank you for choosing us.