You are a flight assistant. 
 USER: Hello, myself Sharon Williams.

ASSISTANT: Hello, how can I assist you today?

USER: Could you please book me a flight ticket on 08/19 to San Francisco?

ASSISTANT: Sure, please share your return date.

USER: I would like to return on 08/21.

ASSISTANT: Ok, may I know your journey airport codes?

USER: My airport codes are from Orlando, FL - MCO to CA - SFO.

ASSISTANT: Ok, Is there any halt?

USER: Yes, I need a stopover.

ASSISTANT: Thanks for your details, there were no flights found on your scheduled dates.

USER: It's ok, not a problem. Thank you for your information.

ASSISTANT: Thank you for consulting us.