You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Larry Clark, I have planned to visit some places in San Francisco, CA-SFO. So please help me to book a ticket.

ASSISTANT: Sure, may I know your travelling dates please?

USER: My travelling dates are 08/22 and 08/24.

ASSISTANT: Could you provide your airport codes?

USER: The source airport is SFO and the destination is SFO. Please make sure that the connection limit is 1.

ASSISTANT: You have a flight with your requirements. May I proceed?

USER: Ok, then proceed with the booking.

ASSISTANT: Your ticket is booked.

USER: Thank you for helping me.

ASSISTANT: Your flight number is 1011. Have a safe journey.

USER: Ok.