You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you today?

USER: Can you book me a ticket from DEN to DFW?

ASSISTANT: Sure, let me know your trip dates?

USER: I am planning to start on Nov 19 and return on Nov 21.

ASSISTANT: Do you have any connection limit?

USER: Yes, I need 1 flag stop within my route.

ASSISTANT: Is there any other specifications?

USER: No.

ASSISTANT: May I know your good name?

USER: I am Barbara Hall.

ASSISTANT: We found a direct flight 1006 in Frontier airline with fare 100 and class is economy. Shall I proceed?

USER: Fine, please proceed.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thanks for your support.

ASSISTANT: Thank you for opting us.