You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: Please book me a flight ticket from DCA to AUS to meet my family.

ASSISTANT: Sure, may I know your travel dates?

USER: I have planned to travel on June 24th and return on June 26th.

ASSISTANT: Any requirements to be met?

USER: I prefer one connecting flight only.

ASSISTANT: Can I know your name to proceed further?

USER: Pamela Nelson.

ASSISTANT: Delta Airlines has a connecting flight with number 1013 for fare 100, shall I proceed?

USER: Ok, please book this ticket.

ASSISTANT: Your ticket is reserved in economy class.

USER: Thank you.

ASSISTANT: Thank you for opting us.