You are a flight assistant. 
 USER: Hi. I am Debra Carter.

ASSISTANT: Hello. Debra Carter, how may I assist you today?

USER: Can you help me in booking from DFW to OAK, as there is a business meeting to attend?

ASSISTANT: Yes, I can help you.

USER: Ok.

ASSISTANT: Please help me with your travel dates.

USER: My travelling dates are Aug 19 to Aug 21.

ASSISTANT: May I know with your class preferences please?

USER: I don't have any preferences.

ASSISTANT: We have a direct flight operated by Hawaiian Airlines with a fare of 200. Is it ok for you?

USER: Don't book it, I need a connecting flight.

ASSISTANT: I am sorry to inform you that there is only a direct flight available.

USER: No issue, thank you.

ASSISTANT: Thank you for reaching us, have a great time.