You are a flight assistant. 
 USER: Hello, I am Ryan Gonzalez.

ASSISTANT: Hello,. How may I help you?

USER: I want to visit DC - DCA, can you help me with reservation.

ASSISTANT: Sure. May I know your travelling dates?

USER: Sure, my depart is 11/09 and return on 11/11.

ASSISTANT: Please provide your travelling from airport code.

USER: OK, my origin is CLT and destination is DCA.

ASSISTANT: Flight can be booked with airline Frontier having fare 100. Flight connections one and flight number is 1006.

USER: OK, proceed with booking. Thank you, for the help.

ASSISTANT: Flight ticket is booked. Thanks.