You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how best can I assist you today?

USER: Can you please help me to book a flight ticket from DEN to EWR?

ASSISTANT: Sure, when do you want to start and return on?

USER: My travelling dates are Mar 9 to Mar 11.

ASSISTANT: Do you prefer a connecting flight?

USER: I need a single connection of flight.

ASSISTANT: Can I know your good name?

USER: Debra Turner here.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Thank you for your details, we found a connecting flight 1011 in class economy which is in Frontier airline. Shall I proceed?

USER: Ok, please proceed.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thank you.