You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER: I am Gregory Brown. I want to visit USS Texa ship in Washington which is a veteran vessel open for exploration, so I want to book a ticket from Charlotte.

ASSISTANT: Can I know you departure and return date please?

USER: I will fly on 12/14 and return on 12/16.

ASSISTANT: Please may I know your desired airport codes?

USER: My journey starts from CLT to IAD.

ASSISTANT: I will check and inform you.

USER: Ok.

ASSISTANT: There is a flight available on your preferred dates, with fare 100 and connection limit 1. Shall I proceed for booking?

USER: You can reserve it.

ASSISTANT: Your ticket is booked on the name Gregory Brown, flight number 1001.

USER: Thank you for helping.

ASSISTANT: Thank you for reaching us.