You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I am Kenneth Phillips. Could you help me in booking a flight ticket from Washington to Phoenix on 12/26?

ASSISTANT: Can you please share on what dates you are willing to travel?

USER: I will start on 12/26, return on 12/28.

ASSISTANT: May I know your airport codes please?

USER: My source and destination airport codes are DC - DCA, AZ - PHX.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: There is a flight available with an airline Hawaiian of flight 1011 and price is 200. Can I proceed?

USER: You can proceed to booking.

ASSISTANT: Your seat has been reserved.

USER: Thank you.

ASSISTANT: Thank you for reaching us.