You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I serve you today?

USER: Please help me to book a flight ticket from DEN to JFK.

ASSISTANT: Sure, we are mirthful to assist you in booking. May I know your name please?

USER: Christopher Martin.

ASSISTANT: Do you need a stopover in between your journey?

USER: Yes, I need a single connecting flight.

ASSISTANT: Kindly mention your planned travelling dates to proceed further.

USER: My journey dates are from Mar, 06 to Mar, 08.

ASSISTANT: Is there any other preferences that you would like to add before booking?

USER: No.

ASSISTANT: Ok, please wait a moment I'll search best flight for you.

USER: Sure.

ASSISTANT: Thank you for waiting, e found an economy class ticket providing by Frontier airline with the flight number-1025. Shall I book the ticket with the connecting flight?

USER: Please proceed for booking.

ASSISTANT: Your seat has been reserved.

USER: Thank you.

ASSISTANT: It's pleasure to serve you.