You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, may I know your name please.

USER: William lopez. Can you book a ticket for me?

ASSISTANT: May I know your travelling details please?

USER: I want to travel from GA - ATL to DC - DCA.

ASSISTANT: Can I have your travelling dates please?

USER: The departure is on 12/21 and return is on 12/23.

ASSISTANT: One flight is available regarding your request.

USER: OK.

ASSISTANT: The flight is having 1 connection, are OK for that?

USER: Yes.

ASSISTANT: The flight number is 1013 and it is UA airlines.

USER: OK.

ASSISTANT: The price of the ticket is 100 and there is 1 connection of flight. Can I proceed the booking of the ticket?

USER: Yes.

ASSISTANT: Your ticket is booked. Thank you have a great day.