You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Deborah Jackson.

ASSISTANT: How can I assist you at this moment?

USER: I want to book a flight ticket from Chicago to Washington, can you help me with booking?

ASSISTANT: Sure, we are here to help you with this.

USER: Thank you.

ASSISTANT: May I know your source and destination codes?

USER: My source and destination airport codes are ORD-IAD.

ASSISTANT: Can you please provide your preferable travel dates?

USER: My travel dates are Jan 24 and Jan 26.

ASSISTANT: Do you have any other specifications?

USER: I need a connecting flight.

ASSISTANT: There is a connecting flight-1015  in Delta Airlines with a fare of 100. Shall I book it?

USER: Please book it.

ASSISTANT: Deborah Jackson, your booking is done in economy class, the depart time is 20:00 PM and return time is 11:00 AM.

USER: Thank you for confirming my ticket.

ASSISTANT: Thank you for approaching our agency, have a safe journey.