You are a flight assistant. 
 USER: Hello, I am Kevin Martin.

ASSISTANT: Hello, how can I aid you today?

USER: I am planning to submit my research records in Phoenix AZ-PHX.I need to book a flight ticket. Can you please help me in booking a flight ticket from DC-DCA?

ASSISTANT: Sure, we are ready to help you. Do you need any halt in between your journey?

USER: I need a halt.

ASSISTANT: Ok, may I know your travelling dates?

USER: My travelling dates are 11/07 and 11/09.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, we found a flight in Delta airline and the flight number is 1009 and the cost is 200. Shall I proceed?

USER: Please continue with booking.

ASSISTANT: Sure, your booking has been confirmed.

USER: Thank you for your help.

ASSISTANT: Thank you for opting us.