You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you?

USER: I am Sharon Nelson. I would like to go DCA from SEA with my parents, can you book a flight ticket for me?

ASSISTANT: Can I know your travel dates?

USER: Sure, it's from 03/04 to 03/06.

ASSISTANT: The flight 1019 of UA airlines is available on your requested dates. Shall I proceed?

USER: Ok, please book it.

ASSISTANT: Your ticket is booked.

USER: Thank you for your quick service.

ASSISTANT: You are welcome.