You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am Justin carter. I need to book a flight ticket from DCA to IAH, can you please help me for booking?

ASSISTANT: Sure, let me know your travelling dates?

USER: I would like to travel on 08/07 to 08/09.

ASSISTANT: Please provide your specifications.

USER: I need a connecting flight,.

ASSISTANT: Delta airlines with single connection and price is 100 of 1020 flight. Shall I proceed?

USER: Ok, proceed for booking.

ASSISTANT: Your ticket has been confirmed.

USER: Thanks for your information.

ASSISTANT: Thank you.