You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I need to book a flight ticket from CA-OAK to TX-AUS for attending my grandfather ceremony. Can you please help me with booking a flight ticket?

ASSISTANT: Sure, kindly mention your travel dates?

USER: 08/28 and 08/30 are my travelling dates.

ASSISTANT: May I know your connection preference?

USER: I need a halt in between the journey.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Sorry to say, no flights founds with your requirement.

USER: No worries, thank you for the information.

ASSISTANT: May I know your name?

USER: I am Janet King.

ASSISTANT: Thanks for reaching us, have a good day.