You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: John Hill here.

ASSISTANT: How can I help you John?

USER: I want to book a flight reservation for my journey from IAD - ATL, can you help me out?

ASSISTANT: Could you please tell me your travel dates?

USER: My journey will be starting on 06/12, and I would like to return back on 06/14.

ASSISTANT: Ok, please wait for a while.

USER: Ok, please check with availability and let me know.

ASSISTANT: Delta airlines is available for you with 1 connection, shall I book?

USER: Ok, please proceed with booking my reservation with this flight.

ASSISTANT: Your ticket is booked with flight number 1026.

USER: Thank you for booking my reservation with this flight.

ASSISTANT: Thank you for choosing us.