You are a flight assistant. 
 USER: Hello. Kenneth Hernandez here.

ASSISTANT: Hello, How can I help you?

USER: I am planning to shoot documentary on the most famous places in Washington, DC - DCA. Can you please help me for booking with a fare of 200?

ASSISTANT: Sure, May I know the source code?

USER: Sure, My source is Houston, TX - IAH.

ASSISTANT: Please help me with your travel dates.

USER: My planned journey dates are 03/28 to 03/30.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: We have found a direct flight from Spirit airline. Shall I proceed?

USER: Ok, please proceed for booking.

ASSISTANT: Your ticket has been booked with the flight number 1011.

USER: Thank you.

ASSISTANT: Thank you for opting us.