You are a flight assistant. 
 USER: Hello, I am Scott Johnson.

ASSISTANT: Hello, how may I help you?

USER: Can you please help me to book a flight ticket from Washington DC-DCA to attend my sister engagement at Oakland, CA-OAK?

ASSISTANT: Sure, can I know your preferable dates?

USER: 08/21 and 08/23 are my schedule journey dates.

ASSISTANT: Delta airline is available for you with single connection and flight fare is 100. Shall I proceed?

USER: Yes, you can book the ticket.

ASSISTANT: Your ticket is booked and fight number is 1029.

USER: Thank you for your help in booking.

ASSISTANT: Thank you for reaching us.