You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I need you to book a flight ticket from AUS to DCA. Please help me.

ASSISTANT: Sure, can you share your trip dates?

USER: August 28 and 30 are my planned travelling dates.

ASSISTANT: Do you have any connection limit?

USER: Yes, I need a break in between my journey.

ASSISTANT: Is there any class preference?

USER: Nothing much to state.

ASSISTANT: Are there any other specifications?

USER: Nothing much to specify.

ASSISTANT: Please forward your name.

USER: Mark White.

ASSISTANT: We found a connecting flight of fare 100 with airline Delta and number 1011. Can I proceed?

USER: Yes, please proceed.

ASSISTANT: Your ticket has been confirmed in economy class.

USER: Thank you very much.

ASSISTANT: Thank you for availing us.