You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I am Jeffrey Lewis want to book a flight ticket from DEN to DCA. Can you help me in booking with a connecting flight?

ASSISTANT: Sure, may I know your trip dates please?

USER: My trip dates are from Feb 25 to Feb 27.

ASSISTANT: Do you have any specifications?

USER: I can bare up to 5000.

ASSISTANT: We found connecting flight 1024 in Frontier airline with fare of 300.

USER: Ok, please proceed with booking.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for reaching us.