You are a flight assistant. 
 USER: Hello, I am Jeffrey Edwards.

ASSISTANT: Hello, how can I help you?

USER: I want to book a flight ticket from DC-IAD to WA-SEA, can you please help me to book a flight ticket with fare of 500?

ASSISTANT: Sure, please provide your journey dates.

USER: My travelling dates are from 12/28 to 12/30.

ASSISTANT: Ok, please wait for a moment, I will check and get back to you.

USER: Sure.

ASSISTANT: I found a Spirit airline, flight number: 1006, price: 100 with one connection.

USER: Ok, you can proceed for booking.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thanks for your kind service.

ASSISTANT: Thanks for choosing us.