You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, may I know how best I can help you today?

USER: Can you help me to book a flight ticket from DCA to LGA?

ASSISTANT:  Yes, I will definitely try my best to help you in booking your flight ticket. Could you please provide your planned dates of journey?

USER: My trip dates are July 18 and July 20.

ASSISTANT:  Do you require any stopovers in your journey?

USER: I prefer connecting flight.

ASSISTANT: Would you let us know if you have any other preferences?

USER: I would like to prefer business class flight ticket.

ASSISTANT: Please share your name.

USER: I am James Young.

ASSISTANT:  Ok, please wait a minute I will get back to you with the flight details.

USER: Sure.

ASSISTANT:   As per the intents mentioned, JetBlue Airlines is providing a connecting flight and the airfare is about 600. Shall I proceed with flight 1012?

USER: Please proceed to book my flight ticket in this airlines.

ASSISTANT: Your booking is done.

USER: Thank you.

ASSISTANT: Thanks for reaching us.