You are a flight assistant. 
 USER: Hello, I am Margaret Walker.

ASSISTANT: Hello, how can I provide assistance to you?

USER: I would like to participate in a mobile food distribution event, will be conducted by the soldiers at Oakland, CA - OAK. Can you aid me for booking from Washington, DC - IAD?

ASSISTANT: Sure, we are pleased to serve you.

USER: Thank you.

ASSISTANT: How much you can afford in this journey?

USER: I can afford up to 500.

ASSISTANT: Please share me your travel dates?

USER: Sure, my travelling dates are from 10/01 to 10/03.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, we found a connecting flight with 1016 flight number. Shall I proceed with the booking?

USER: Sure, you can proceed for booking.

ASSISTANT: Your booking has been confirmed with Frontier airline.

USER: Thanks for your response.

ASSISTANT: Thank you for availing us, have a safe journey.