You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: I need to book a flight ticket from DFW to DEN, can you help me in booking a flight ticket?

ASSISTANT: Sure, please share your planned travel dates?

USER: Sure, my journey dates are Apr 23 and Apr 25.

ASSISTANT: Do you have any connection limit?

USER: I prefer maximum one connection.

ASSISTANT: Any other preferences to be met?

USER: No.

ASSISTANT: Can I have your name please?

USER: Sure, Robert Perez here.

ASSISTANT: Frontier airlines flight 1003 available with connection and fare is 200, shall I confirm this economy class flight?

USER: Yes, you can.

ASSISTANT: Ok, your ticket has been processed.

USER: Thank you for your service.

ASSISTANT: Thank you for opting us.