You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I serve you today?

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

ASSISTANT: Sure, please share me your planned journey dates?

USER: My trip dates are Dec 4 to Dec 6.

ASSISTANT: May I know your connection limit?

USER: I need a direct flight.

ASSISTANT: Do you have any other requirement?

USER: No.

ASSISTANT: While I check for the flight availability, please mention your good name.

USER: I am Donna Turner.

ASSISTANT: Thank you for the name, sorry there is no flight available on your given journey data.

USER: No issue, thank you.

ASSISTANT: Thank you for reaching us, we hope see you again.