You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER:  I am Denis Taylor want to travel to Washington. Can you book a ticket on 04/08?

ASSISTANT: Sure, may I know your return journey date?

USER: I will return on 04/10.

ASSISTANT: Could you please provide your airport codes?

USER: I will depart from GA-ATL to DC-IAD.

ASSISTANT: Ok, please wait a moment. UA airlines with single connection and price is 100 of 1000 flight. Shall I proceed for booking?

USER: Ok, you can proceed.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you for booking.

ASSISTANT: Thank you, have a nice day.