You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you today?

USER: I am looking for a flight from DCA to DEN, can you help me in booking?

ASSISTANT: Sure, I am gleeful to help you with that, May I know your travelling dates?

USER: Sure, my planned travel dates are Sept 15 and Sept 17.

ASSISTANT: Do you have any class preference?

USER: No, I don't have any class preference.

ASSISTANT: Would you like to travel in a connecting flight or in direct flight?

USER: Please look for a connecting flight.

ASSISTANT: May I know your name please?

USER: Myself Donald Jackson.

ASSISTANT: Do you have any other specifications?

USER: No, thank you.

ASSISTANT: There is a connecting flight-1011 in Jet Blue Airlines with a fare of 200. Shall I proceed with booking?

USER: That's fine, please proceed with booking.

ASSISTANT: Donald Jackson, your booking has been done in economy class.

USER: Thank you for the service.

ASSISTANT: Thank you for choosing our agency, have a safe journey.