You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Rebecca Taylor.

ASSISTANT: How may I assist you now?

USER: Will you please aid me in booking a flight ticket from ORD to DCA to attend a music festival?

ASSISTANT: Rebecca Taylor, may I know your travelling dates?

USER: I would like to depart on Oct 02 and return on Oct 04.

ASSISTANT: Do you need a connecting flight?

USER: Yes, I need a flight having single connection.

ASSISTANT: May I know your depart and return time?

USER: My return time should be afternoon.

ASSISTANT: Give me a moment to check with availability.

USER: Sure, take your time.

ASSISTANT: Sorry to inform you, there is no active reservation available by your name. Thank you for choosing our services.

USER: Ok, no problem.

ASSISTANT: Have a great day ahead.

USER: Thank you for the information.