You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you?

USER: My name is Deborah Harris.

ASSISTANT: Can I know your airport codes?

USER: I want to book a flight ticket on dates from 02/28 to 03/01.

ASSISTANT: Ok, can I know your codes?

USER: I would like to travel from DCA to BOS.

ASSISTANT: i found a flight 1003 of Southwest airlines matches with your preferences, can I proceed?

USER: Yes, please proceed.

ASSISTANT: Your ticket is booked.

USER: Thank you for booking the ticket.

ASSISTANT: Thank you, have a good day.