You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you today?

USER: Can you help me to book a connecting flight ticket?

ASSISTANT: Sure, I am here to help you. May I know your travel dates please?

USER: My travel dates are Dec 06 and Dec 08.

ASSISTANT: Ok, can you please provide your airport codes?

USER: My airport codes are IAD and DFW.

ASSISTANT: Ok, do you have any other specifications?

USER: I would like to return back in the morning time.

ASSISTANT: I found a flight for you with American Airlines and it costs you 100. Shall I proceed?

USER: Please proceed.

ASSISTANT: Please provide your name to book your ticket.

USER: I am Edward Moore.

ASSISTANT: Your ticket is booked in flight number 1000.

USER: Thank you.

ASSISTANT: You are welcome and have a safe journey.