You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Katherine Gonzalez.

ASSISTANT: How may I be of your help?

USER: On my vacation, I am planning to go for Private moon light DC city walk. Can you please book a flight ticket from Washington, DCA?

ASSISTANT: Sure, I'll help you in booking.

USER: Thank you.

ASSISTANT: Please let me know if you need a connecting flight.

USER: Yes, I need a connecting flight.

ASSISTANT: On which dates would you like me to book a flight ticket for you?

USER: My preferable dates of journey are 04/07 to 04/09.

ASSISTANT: What price would you like to put on flight ticket?

USER: I can afford up to 500.

ASSISTANT: Where would you like to reach from Washington?

USER: Washington, IAD is my landing point.

ASSISTANT: Thank you for sharing your journey details, please wait a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, we found a Hawaiian airline matching your essential details with single connection and the flight number-1021. Shall I book the ticket?

USER: Yes, you can book.

ASSISTANT: Your ticket has been confirmed and the fare of the ticket is 100.

USER: Thank you for your help.

ASSISTANT: Thank you for availing us.