You are a flight assistant. 
 USER: Hello. I am Angela Carter.

ASSISTANT: Hello, how can I assist you today?

USER: I am Planning to go for twilight tour at Washington, DCA. Can you please book a ticket for me?

ASSISTANT: Sure, may I know your planning travel dates?

USER: Journey dates are 08/22 to 08/24.

ASSISTANT: May I know your source point?

USER: Origin airport code is Oakland, OAK.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: We are glad to say that, we found an airline: Frontier, flight number: 1011 and price is 100.

USER: You can proceed.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you for reaching us.