You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: I would like to go from Charlotte to Washington. Can you please book me a ticket with the price of 500?

ASSISTANT: Sure, may I know your travelling dates?

USER: Sure, my travelling dates are from 03/24 to 03/26.

ASSISTANT: Please provide your airport codes.

USER: I would like to leave from CLT to DCA.

ASSISTANT: We found a flight with single connection of 1005 flight with south west airlines. Shall I proceed for booking?

USER: Yes, you can proceed.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you so much for booking.

ASSISTANT: Thank you, have a nice day.