You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you at present?

USER: Please help me out in booking the ticket from DCA to PHL.

ASSISTANT: Sure, Let me know your planned journey dates.

USER: My trip dates will be Dec 26 to Dec 28.

ASSISTANT: Is there any connection limit?

USER: I need a connecting flight.

ASSISTANT: Do you have any other preferences?

USER: No.

ASSISTANT: May I know your name please?

USER: Mark Mitchell is my name.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: JetBlue provides you a flight to reach your destination in an economy class with a fare of 200. Can I proceed for booking in an economy class?

USER: Please proceed.

ASSISTANT: Sure, your booking has been done in 1007 airline.

USER: Thank you.

ASSISTANT: Thank you for availing us.