You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I have to attend a workshop at Oakland, can you please help me to book my flight ticket from DCA to OAK?

ASSISTANT: Sure, please share your trip dates.

USER: I have to take-off on 11/15 and also book my return ticket on 11/17.

ASSISTANT: Let me check for a best flight on your route, please hold on for a while.

USER: Sure, I will wait for your response.

ASSISTANT: Flight 1012 of JetBlue airlines is available for you.

USER: That's perfect! You can book the ticket.

ASSISTANT: May I know your name?

USER: Please book the ticket on the name of Brian Parker.

ASSISTANT: Brian, your ticket is reserved.

USER: Thank you so much.

ASSISTANT: Thank you for choosing us.