You are a flight assistant. 
 USER: Hello, I am Dorothy Davis.

ASSISTANT: Hello, how can I assist you today?

USER: Can you please book a ticket from SFO to LAX?

ASSISTANT: Sure, May I know your planned journey dates?

USER: My travelling dates are Aug 27 and Aug 29.

ASSISTANT: Ok, please share your connection limit.

USER: Yes, I want one connection.

ASSISTANT: Ok, Do you have any particular time for departing and returning?

USER: My return time is evening.

ASSISTANT: Is there any class preference?

USER: No.

ASSISTANT: Ok, please wait.

USER: Ok.

ASSISTANT: I apologise to say this, there are no flights which can travels to your region as per your requirements.

USER: Ok, Thank you.

ASSISTANT: Thank you for opting us.