You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: I want to book a ticket from DCA to DFW to attend seminar, can you help me in booking?

ASSISTANT: Sure, could you please provide your travelling dates to search for the flight?

USER: I am departing on Jan 14 and return on Jan 16.

ASSISTANT: May I know your name?

USER: My name is Justin Allen.

ASSISTANT: Do you have any requirements?

USER: I do not have any other specifications.

ASSISTANT: There is a connecting flight 1016 of American Airlines, can I proceed?

USER: Please proceed for booking.

ASSISTANT: Your booking is done.

USER: Thank you for your help.

ASSISTANT: Welcome.