You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: I am Justin Carter. Can you help me to book a flight on 04/17?

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

USER: I am planning to return on 04/19.

ASSISTANT: Ok, may I know the codes of airport you want to travel?

USER: My airport codes are DFW and ATL.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: Ok, there is a connecting flight with price 200. Shall I proceed?

USER: Proceed with booking.

ASSISTANT: Ok, your booking is done with 1014 flight.

USER: Thank you.

ASSISTANT: You are welcome.